diff --git a/libs/ui/KisImportExportFilter.cpp b/libs/ui/KisImportExportFilter.cpp
index e156ccc320..bde881b408 100644
--- a/libs/ui/KisImportExportFilter.cpp
+++ b/libs/ui/KisImportExportFilter.cpp
@@ -1,278 +1,283 @@
 /* This file is part of the KDE libraries
    Copyright (C) 2001 Werner Trobin <trobin@kde.org>
                  2002 Werner Trobin <trobin@kde.org>
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public
 License as published by the Free Software Foundation; either
 version 2 of the License, or (at your option) any later version.
 
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public License
 along with this library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 Boston, MA 02110-1301, USA.
 */
 
 #include "KisImportExportFilter.h"
 
 #include <QFile>
 #include <kis_debug.h>
 #include <QStack>
 #include "KisImportExportManager.h"
 #include <KoColorSpaceRegistry.h>
 #include <KoColorModelStandardIds.h>
 #include <KisExportCheckBase.h>
 #include <KisExportCheckRegistry.h>
 #include "KoUpdater.h"
 #include <klocalizedstring.h>
 
+const QString KisImportExportFilter::ImageContainsTransparencyTag = "ImageContainsTransparency";
+const QString KisImportExportFilter::ColorModelIDTag = "ColorModelID";
+const QString KisImportExportFilter::ColorDepthIDTag = "ColorDepthID";
+const QString KisImportExportFilter::sRGBTag = "sRGB";
+
 class Q_DECL_HIDDEN KisImportExportFilter::Private
 {
 public:
     QPointer<KoUpdater> updater;
     QByteArray mime;
     QString filename;
     QString realFilename;
     bool batchmode;
 
     QMap<QString, KisExportCheckBase*> capabilities;
 
     Private()
         : updater(0), mime("")
         , batchmode(false)
     {}
 
     ~Private()
     {
         qDeleteAll(capabilities);
     }
 
 };
 
 
 KisImportExportFilter::KisImportExportFilter(QObject *parent)
     : QObject(parent)
     , d(new Private)
 {
 }
 
 KisImportExportFilter::~KisImportExportFilter()
 {
     if (d->updater) {
         d->updater->setProgress(100);
     }
     delete d;
 }
 
 QString KisImportExportFilter::filename() const
 {
     return d->filename;
 }
 
 QString KisImportExportFilter::realFilename() const
 {
     return d->realFilename;
 }
 
 bool KisImportExportFilter::batchMode() const
 {
     return d->batchmode;
 }
 
 
 void KisImportExportFilter::setBatchMode(bool batchmode)
 {
     d->batchmode = batchmode;
 }
 
 void KisImportExportFilter::setFilename(const QString &filename)
 {
     d->filename = filename;
 }
 
 void KisImportExportFilter::setRealFilename(const QString &filename)
 {
     d->realFilename = filename;
 }
 
 
 void KisImportExportFilter::setMimeType(const QString &mime)
 {
     d->mime = mime.toLatin1();
 }
 
 QByteArray KisImportExportFilter::mimeType() const
 {
     return d->mime;
 }
 
 QString KisImportExportFilter::conversionStatusString(ConversionStatus status)
 {
     QString msg;
     switch (status) {
     case OK: break;
 
     case FilterCreationError:
         msg = i18n("Could not create the filter plugin"); break;
 
     case CreationError:
         msg = i18n("Could not create the output document"); break;
 
     case FileNotFound:
         msg = i18n("File not found"); break;
 
     case StorageCreationError:
         msg = i18n("Cannot create storage"); break;
 
     case BadMimeType:
         msg = i18n("Bad MIME type"); break;
 
     case WrongFormat:
         msg = i18n("Format not recognized"); break;
 
     case NotImplemented:
         msg = i18n("Not implemented"); break;
 
     case ParsingError:
         msg = i18n("Parsing error"); break;
 
     case InvalidFormat:
         msg = i18n("Invalid file format"); break;
 
     case InternalError:
     case UsageError:
         msg = i18n("Internal error"); break;
 
     case ProgressCancelled:
         msg = i18n("Cancelled by user"); break;
 
     case BadConversionGraph:
 
         msg = i18n("Unknown file type"); break;
 
     case UnsupportedVersion:
 
         msg = i18n("Unsupported file version"); break;
 
     case UserCancelled:
 
         // intentionally we do not prompt the error message here
         break;
 
 
     default: msg = i18n("Unknown error"); break;
     }
     return msg;
 }
 
 KisPropertiesConfigurationSP KisImportExportFilter::defaultConfiguration(const QByteArray &from, const QByteArray &to) const
 {
     Q_UNUSED(from);
     Q_UNUSED(to);
     return 0;
 }
 
 KisPropertiesConfigurationSP KisImportExportFilter::lastSavedConfiguration(const QByteArray &from, const QByteArray &to) const
 {
     return defaultConfiguration(from, to);
 }
 
 KisConfigWidget *KisImportExportFilter::createConfigurationWidget(QWidget *, const QByteArray &from, const QByteArray &to) const
 {
     Q_UNUSED(from);
     Q_UNUSED(to);
     return 0;
 }
 
 QMap<QString, KisExportCheckBase *> KisImportExportFilter::exportChecks()
 {
     qDeleteAll(d->capabilities);
     initializeCapabilities();
     return d->capabilities;
 }
 
 void KisImportExportFilter::setUpdater(QPointer<KoUpdater> updater)
 {
     d->updater = updater;
 }
 
 void KisImportExportFilter::setProgress(int value)
 {
     if (d->updater) {
         d->updater->setValue(value);
     }
 }
 
 void KisImportExportFilter::initializeCapabilities()
 {
     // XXX: Initialize everything to fully supported?
 }
 
 void KisImportExportFilter::addCapability(KisExportCheckBase *capability)
 {
     d->capabilities[capability->id()] = capability;
 }
 
 
 
 void KisImportExportFilter::addSupportedColorModels(QList<QPair<KoID, KoID> > supportedColorModels, const QString &name, KisExportCheckBase::Level level)
 {
     Q_ASSERT(level != KisExportCheckBase::SUPPORTED);
     QString layerMessage;
     QString imageMessage;
     QList<KoID> allColorModels = KoColorSpaceRegistry::instance()->colorModelsList(KoColorSpaceRegistry::AllColorSpaces);
     Q_FOREACH(const KoID &colorModelID, allColorModels) {
         QList<KoID> allColorDepths = KoColorSpaceRegistry::instance()->colorDepthList(colorModelID.id(), KoColorSpaceRegistry::AllColorSpaces);
         Q_FOREACH(const KoID &colorDepthID, allColorDepths) {
 
             KisExportCheckFactory *colorModelCheckFactory =
                     KisExportCheckRegistry::instance()->get("ColorModelCheck/" + colorModelID.id() + "/" + colorDepthID.id());
             KisExportCheckFactory *colorModelPerLayerCheckFactory =
                     KisExportCheckRegistry::instance()->get("ColorModelPerLayerCheck/" + colorModelID.id() + "/" + colorDepthID.id());
 
             if(!colorModelCheckFactory || !colorModelPerLayerCheckFactory) {
                 qDebug() << "No factory for" << colorModelID << colorDepthID;
                 continue;
             }
 
             if (supportedColorModels.contains(QPair<KoID, KoID>(colorModelID, colorDepthID))) {
                 addCapability(colorModelCheckFactory->create(KisExportCheckBase::SUPPORTED));
                 addCapability(colorModelPerLayerCheckFactory->create(KisExportCheckBase::SUPPORTED));
             }
             else {
 
 
                 if (level == KisExportCheckBase::PARTIALLY) {
                     imageMessage = i18nc("image conversion warning",
                                          "%1 cannot save images with color model <b>%2</b> and depth <b>%3</b>. The image will be converted."
                                          ,name, colorModelID.name(), colorDepthID.name());
 
                     layerMessage =
                             i18nc("image conversion warning",
                                   "%1 cannot save layers with color model <b>%2</b> and depth <b>%3</b>. The layers will be converted or skipped."
                                   ,name, colorModelID.name(), colorDepthID.name());
                 }
                 else {
                     imageMessage = i18nc("image conversion warning",
                                          "%1 cannot save images with color model <b>%2</b> and depth <b>%3</b>. The image will not be saved."
                                          ,name, colorModelID.name(), colorDepthID.name());
 
                     layerMessage =
                             i18nc("image conversion warning",
                                   "%1 cannot save layers with color model <b>%2</b> and depth <b>%3</b>. The layers will be skipped."
                                   , name, colorModelID.name(), colorDepthID.name());
                  }
 
 
 
                 addCapability(colorModelCheckFactory->create(level, imageMessage));
                 addCapability(colorModelPerLayerCheckFactory->create(level, layerMessage));
             }
         }
     }
 }
diff --git a/libs/ui/KisImportExportFilter.h b/libs/ui/KisImportExportFilter.h
index 0c163f7662..3725eebbf4 100644
--- a/libs/ui/KisImportExportFilter.h
+++ b/libs/ui/KisImportExportFilter.h
@@ -1,179 +1,183 @@
 /* This file is part of the Calligra libraries
    Copyright (C) 2001 Werner Trobin <trobin@kde.org>
                  2002 Werner Trobin <trobin@kde.org>
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public
 License as published by the Free Software Foundation; either
 version 2 of the License, or (at your option) any later version.
 
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public License
 along with this library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 Boston, MA 02110-1301, USA.
 */
 
 #ifndef KIS_IMPORT_EXPORT_FILTER_H
 #define KIS_IMPORT_EXPORT_FILTER_H
 
 #include <QObject>
 #include <QIODevice>
 #include <QMap>
 #include <QPointer>
 #include <QString>
 #include <QPair>
 #include <QList>
 #include <KoID.h>
 #include <QSharedPointer>
 #include <kis_properties_configuration.h>
 #include <kis_types.h>
 #include <KisExportCheckBase.h>
 
 class KoUpdater;
 class KisDocument;
 class KisConfigWidget;
 
 #include "kritaui_export.h"
 
 
 /**
  * @brief The base class for import and export filters.
  *
  * Derive your filter class from this base class and implement
  * the @ref convert() method. Don't forget to specify the Q_OBJECT
  * macro in your class even if you don't use signals or slots.
  * This is needed as filters are created on the fly.
  *
  * @note Take care: The m_chain pointer is invalid while the constructor
  * runs due to the implementation -- @em don't use it in the constructor.
  * After the constructor, when running the @ref convert() method it's
  * guaranteed to be valid, so no need to check against 0.
  *
  * @note If the code is compiled in debug mode, setting CALLIGRA_DEBUG_FILTERS
  * environment variable to any value disables deletion of temporary files while
  * importing/exporting. This is useful for testing purposes.
  *
  * @author Werner Trobin <trobin@kde.org>
  * @todo the class has no constructor and therefore cannot initialize its private class
  */
 class KRITAUI_EXPORT KisImportExportFilter : public QObject
 {
     Q_OBJECT
-
+public:
+    static const QString ImageContainsTransparencyTag;
+    static const QString ColorModelIDTag;
+    static const QString ColorDepthIDTag;
+    static const QString sRGBTag;
 public:
     /**
      * This enum is used to signal the return state of your filter.
      * Return OK in @ref convert() in case everything worked as expected.
      * Feel free to add some more error conditions @em before the last item
      * if it's needed.
      */
     enum ConversionStatus { OK,
                             UsageError,
                             CreationError,
                             FileNotFound,
                             StorageCreationError,
                             BadMimeType,
                             BadConversionGraph,
                             WrongFormat,
                             NotImplemented,
                             ParsingError,
                             InternalError,
                             UserCancelled,
                             InvalidFormat,
                             FilterCreationError,
                             ProgressCancelled,
                             UnsupportedVersion,
                             JustInCaseSomeBrokenCompilerUsesLessThanAByte = 255
                           };
 
     virtual ~KisImportExportFilter();
 
     void setBatchMode(bool batchmode);
     void setFilename(const QString &filename);
     void setRealFilename(const QString &filename);
     void setMimeType(const QString &mime);
     void setUpdater(QPointer<KoUpdater> updater);
 
     /**
      * The filter chain calls this method to perform the actual conversion.
      * The passed mimetypes should be a pair of those you specified in your
      * .desktop file.
      * You @em have to implement this method to make the filter work.
      *
      * @return The error status, see the @ref #ConversionStatus enum.
      *         KisImportExportFilter::OK means that everything is alright.
      */
     virtual ConversionStatus convert(KisDocument *document, QIODevice *io, KisPropertiesConfigurationSP configuration = 0) = 0;
 
     /**
      * Get the text version of the status value
      */
     static QString conversionStatusString(ConversionStatus status);
 
     /**
      * @brief defaultConfiguration defines the default settings for the given import export filter
      * @param from The mimetype of the source file/document
      * @param to The mimetype of the destination file/document
      * @return a serializable KisPropertiesConfiguration object
      */
     virtual KisPropertiesConfigurationSP defaultConfiguration(const QByteArray& from = "", const QByteArray& to = "") const;
 
     /**
      * @brief lastSavedConfiguration return the last saved configuration for this filter
      * @param from The mimetype of the source file/document
      * @param to The mimetype of the destination file/document
      * @return a serializable KisPropertiesConfiguration object
      */
     virtual KisPropertiesConfigurationSP lastSavedConfiguration(const QByteArray &from = "", const QByteArray &to = "") const;
 
     /**
      * @brief createConfigurationWidget creates a widget that can be used to define the settings for a given import/export filter
      * @param parent the ownder of the widget; the caller is responsible for deleting
      * @param from The mimetype of the source file/document
      * @param to The mimetype of the destination file/document
      *
      * @return the widget
      */
     virtual KisConfigWidget *createConfigurationWidget(QWidget *parent, const QByteArray& from = "", const QByteArray& to = "") const;
 
     /**
      * @brief generate and return the list of capabilities of this export filter. The list
      * @return returns the list of capabilities of this export filter
      */
     virtual QMap<QString, KisExportCheckBase*> exportChecks();
 
     /// Override and return false for the filters that use a library that cannot handle file handles, only file names.
     virtual bool supportsIO() const { return true; }
 
 protected:
     /**
      * This is the constructor your filter has to call, obviously.
      */
     KisImportExportFilter(QObject *parent = 0);
 
     QString filename() const;
     QString realFilename() const;
     bool batchMode() const;
     QByteArray mimeType() const;
 
     void setProgress(int value);
     virtual void initializeCapabilities();
     void addCapability(KisExportCheckBase *capability);
     void addSupportedColorModels(QList<QPair<KoID, KoID> > supportedColorModels, const QString &name, KisExportCheckBase::Level level = KisExportCheckBase::PARTIALLY);
 
 private:
 
     KisImportExportFilter(const KisImportExportFilter& rhs);
     KisImportExportFilter& operator=(const KisImportExportFilter& rhs);
 
     class Private;
     Private *const d;
 
 };
 
 #endif
diff --git a/libs/ui/KisImportExportManager.cpp b/libs/ui/KisImportExportManager.cpp
index d9471e78cb..fff1ff2ac8 100644
--- a/libs/ui/KisImportExportManager.cpp
+++ b/libs/ui/KisImportExportManager.cpp
@@ -1,489 +1,495 @@
 /*
  * Copyright (C) 2016 Boudewijn Rempt <boud@valdyas.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "KisImportExportManager.h"
 
 #include <QFile>
 #include <QLabel>
 #include <QVBoxLayout>
 #include <QList>
 #include <QApplication>
 #include <QByteArray>
 #include <QPluginLoader>
 #include <QFileInfo>
 #include <QMessageBox>
 #include <QJsonObject>
 #include <QTextBrowser>
 #include <QCheckBox>
 #include <QSaveFile>
 #include <QGroupBox>
 
 #include <klocalizedstring.h>
 #include <ksqueezedtextlabel.h>
 #include <kpluginfactory.h>
 
 #include <KoFileDialog.h>
 #include <kis_icon_utils.h>
 #include <KoDialog.h>
 #include <KoProgressUpdater.h>
 #include <KoJsonTrader.h>
 #include <KisMimeDatabase.h>
 #include <kis_config_widget.h>
 #include <kis_debug.h>
 #include <KisMimeDatabase.h>
 #include <KisPreExportChecker.h>
 #include <KisPart.h>
 #include "kis_config.h"
 #include "KisImportExportFilter.h"
 #include "KisDocument.h"
 #include <kis_image.h>
 #include <kis_paint_layer.h>
 #include "kis_painter.h"
 #include "kis_guides_config.h"
 #include "kis_grid_config.h"
 #include "kis_popup_button.h"
 #include <kis_iterator_ng.h>
 
 // static cache for import and export mimetypes
 QStringList KisImportExportManager::m_importMimeTypes;
 QStringList KisImportExportManager::m_exportMimeTypes;
 
 class Q_DECL_HIDDEN KisImportExportManager::Private
 {
 public:
     bool batchMode {false};
     QPointer<KoProgressUpdater> progressUpdater {0};
 };
 
 KisImportExportManager::KisImportExportManager(KisDocument* document)
     : m_document(document)
     , d(new Private)
 {
 }
 
 KisImportExportManager::~KisImportExportManager()
 {
     delete d;
 }
 
 KisImportExportFilter::ConversionStatus KisImportExportManager::importDocument(const QString& location, const QString& mimeType)
 {
     return convert(Import, location, location, mimeType, false, 0);
 }
 
 KisImportExportFilter::ConversionStatus KisImportExportManager::exportDocument(const QString& location, const QString& realLocation, QByteArray& mimeType, bool showWarnings, KisPropertiesConfigurationSP exportConfiguration)
 {
     return convert(Export, location, realLocation, mimeType, showWarnings, exportConfiguration);
 }
 
 // The static method to figure out to which parts of the
 // graph this mimetype has a connection to.
 QStringList KisImportExportManager::mimeFilter(Direction direction)
 {
     // Find the right mimetype by the extension
     QSet<QString> mimeTypes;
     //    mimeTypes << KisDocument::nativeFormatMimeType() << "application/x-krita-paintoppreset" << "image/openraster";
 
     if (direction == KisImportExportManager::Import) {
         if (m_importMimeTypes.isEmpty()) {
             KoJsonTrader trader;
             QList<QPluginLoader *>list = trader.query("Krita/FileFilter", "");
             Q_FOREACH(QPluginLoader *loader, list) {
                 QJsonObject json = loader->metaData().value("MetaData").toObject();
                 Q_FOREACH(const QString &mimetype, json.value("X-KDE-Import").toString().split(",", QString::SkipEmptyParts)) {
                     //qDebug() << "Adding  import mimetype" << mimetype << KisMimeDatabase::descriptionForMimeType(mimetype) << "from plugin" << loader;
                     mimeTypes << mimetype;
                 }
             }
             qDeleteAll(list);
             m_importMimeTypes = mimeTypes.toList();
         }
         return m_importMimeTypes;
     }
     else if (direction == KisImportExportManager::Export) {
         if (m_exportMimeTypes.isEmpty()) {
             KoJsonTrader trader;
             QList<QPluginLoader *>list = trader.query("Krita/FileFilter", "");
             Q_FOREACH(QPluginLoader *loader, list) {
                 QJsonObject json = loader->metaData().value("MetaData").toObject();
                 Q_FOREACH(const QString &mimetype, json.value("X-KDE-Export").toString().split(",", QString::SkipEmptyParts)) {
                     //qDebug() << "Adding  export mimetype" << mimetype << KisMimeDatabase::descriptionForMimeType(mimetype) << "from plugin" << loader;
                     mimeTypes << mimetype;
                 }
             }
             qDeleteAll(list);
             m_exportMimeTypes = mimeTypes.toList();
         }
         return m_exportMimeTypes;
     }
     return QStringList();
 }
 
 KisImportExportFilter *KisImportExportManager::filterForMimeType(const QString &mimetype, KisImportExportManager::Direction direction)
 {
     int weight = -1;
     KisImportExportFilter *filter = 0;
     QList<QPluginLoader *>list = KoJsonTrader::instance()->query("Krita/FileFilter", "");
     Q_FOREACH(QPluginLoader *loader, list) {
         QJsonObject json = loader->metaData().value("MetaData").toObject();
         QString directionKey = direction == Export ? "X-KDE-Export" : "X-KDE-Import";
         if (json.value(directionKey).toString().split(",", QString::SkipEmptyParts).contains(mimetype)) {
             KLibFactory *factory = qobject_cast<KLibFactory *>(loader->instance());
 
             if (!factory) {
                 warnUI << loader->errorString();
                 continue;
             }
 
             QObject* obj = factory->create<KisImportExportFilter>(0);
             if (!obj || !obj->inherits("KisImportExportFilter")) {
                 delete obj;
                 continue;
             }
 
             KisImportExportFilter *f = qobject_cast<KisImportExportFilter*>(obj);
             if (!f) {
                 delete obj;
                 continue;
             }
 
             int w = json.value("X-KDE-Weight").toInt();
             if (w > weight) {
                 delete filter;
                 filter = f;
                 f->setObjectName(loader->fileName());
                 weight = w;
             }
         }
     }
     qDeleteAll(list);
     if (filter) {
         filter->setMimeType(mimetype);
     }
     return filter;
 }
 
 void KisImportExportManager::setBatchMode(const bool batch)
 {
     d->batchMode = batch;
 }
 
 bool KisImportExportManager::batchMode(void) const
 {
     return d->batchMode;
 }
 
 void KisImportExportManager::setProgresUpdater(KoProgressUpdater *updater)
 {
     d->progressUpdater = updater;
 }
 
 QString KisImportExportManager::askForAudioFileName(const QString &defaultDir, QWidget *parent)
 {
     KoFileDialog dialog(parent, KoFileDialog::ImportFiles, "ImportAudio");
 
     if (!defaultDir.isEmpty()) {
         dialog.setDefaultDir(defaultDir);
     }
 
     QStringList mimeTypes;
     mimeTypes << "audio/mpeg";
     mimeTypes << "audio/ogg";
     mimeTypes << "audio/vorbis";
     mimeTypes << "audio/vnd.wave";
     mimeTypes << "audio/flac";
 
     dialog.setMimeTypeFilters(mimeTypes);
     dialog.setCaption(i18nc("@titile:window", "Open Audio"));
 
     return dialog.filename();
 }
 
 KisImportExportFilter::ConversionStatus KisImportExportManager::convert(KisImportExportManager::Direction direction, const QString &location, const QString& realLocation, const QString &mimeType, bool showWarnings, KisPropertiesConfigurationSP exportConfiguration)
 {
+    // export configuration is supported for export only
+    KIS_SAFE_ASSERT_RECOVER_NOOP(direction == Export || !bool(exportConfiguration));
+
 
     QString typeName = mimeType;
     if (typeName.isEmpty()) {
         typeName = KisMimeDatabase::mimeTypeForFile(location);
     }
 
     QSharedPointer<KisImportExportFilter> filter(filterForMimeType(typeName, direction));
     if (!filter) {
         return KisImportExportFilter::FilterCreationError;
     }
 
     filter->setFilename(location);
     filter->setRealFilename(realLocation);
     filter->setBatchMode(batchMode());
     filter->setMimeType(typeName);
 
     if (d->progressUpdater) {
         filter->setUpdater(d->progressUpdater->startSubtask());
     }
 
     QByteArray from, to;
     if (direction == Export) {
         from = m_document->nativeFormatMimeType();
         to = mimeType.toLatin1();
     }
     else {
         from = mimeType.toLatin1();
         to = m_document->nativeFormatMimeType();
     }
 
     if (!exportConfiguration) {
         exportConfiguration = filter->lastSavedConfiguration(from, to);
         if (exportConfiguration) {
             // Fill with some meta information about the image
             KisImageWSP image = m_document->image();
             KisPaintDeviceSP dev = image->projection();
             const KoColorSpace* cs = dev->colorSpace();
             const bool isThereAlpha =
                 KisPainter::checkDeviceHasTransparency(image->projection());
 
-            exportConfiguration->setProperty("ImageContainsTransparency", isThereAlpha);
-            exportConfiguration->setProperty("ColorModelID", cs->colorModelId().id());
-            exportConfiguration->setProperty("ColorDepthID", cs->colorDepthId().id());
-            bool sRGB = (cs->profile()->name().contains(QLatin1String("srgb"), Qt::CaseInsensitive) && !cs->profile()->name().contains(QLatin1String("g10")));
-            exportConfiguration->setProperty("sRGB", sRGB);
+            exportConfiguration->setProperty(KisImportExportFilter::ImageContainsTransparencyTag, isThereAlpha);
+            exportConfiguration->setProperty(KisImportExportFilter::ColorModelIDTag, cs->colorModelId().id());
+            exportConfiguration->setProperty(KisImportExportFilter::ColorDepthIDTag, cs->colorDepthId().id());
+
+            const bool sRGB =
+                    (cs->profile()->name().contains(QLatin1String("srgb"), Qt::CaseInsensitive) &&
+                     !cs->profile()->name().contains(QLatin1String("g10")));
+            exportConfiguration->setProperty(KisImportExportFilter::sRGBTag, sRGB);
         }
 
     }
 
     QStringList warnings;
     QStringList errors;
 
     if (direction == Export) {
         KisPreExportChecker checker;
         checker.check(m_document->image(), filter->exportChecks());
 
         warnings = checker.warnings();
         errors = checker.errors();
     }
 
     KisConfigWidget *wdg = filter->createConfigurationWidget(0, from, to);
     bool alsoAsKra = false;
 
 
     // Extra checks that cannot be done by the checker, because the checker only has access to the image.
     if (!m_document->assistants().isEmpty() && typeName != m_document->nativeFormatMimeType()) {
         warnings.append(i18nc("image conversion warning", "The image contains <b>assistants</b>. The assistants will not be saved."));
     }
     if (m_document->guidesConfig().hasGuides() && typeName != m_document->nativeFormatMimeType()) {
         warnings.append(i18nc("image conversion warning", "The image contains <b>guides</b>. The guides will not be saved."));
     }
     if (!m_document->gridConfig().isDefault() && typeName != m_document->nativeFormatMimeType()) {
         warnings.append(i18nc("image conversion warning", "The image contains a <b>custom grid configuration</b>. The configuration will not be saved."));
     }
 
     if (!batchMode() && !errors.isEmpty()) {
         QString error =  "<html><body><p><b>"
                 + i18n("Error: cannot save this image as a %1.", KisMimeDatabase::descriptionForMimeType(typeName))
                 + "</b> Reasons:</p>"
                 + "<p/><ul>";
         Q_FOREACH(const QString &w, errors) {
             error += "\n<li>" + w + "</li>";
         }
 
         error += "</ul>";
 
         QMessageBox::critical(KisPart::instance()->currentMainwindow(), i18nc("@title:window", "Krita: Export Error"), error);
         return KisImportExportFilter::UserCancelled;
     }
 
     if (!batchMode() && (wdg || !warnings.isEmpty())) {
 
         KoDialog dlg;
 
         dlg.setButtons(KoDialog::Ok | KoDialog::Cancel);
         dlg.setWindowTitle(KisMimeDatabase::descriptionForMimeType(mimeType));
 
         QWidget *page = new QWidget(&dlg);
         QVBoxLayout *layout = new QVBoxLayout(page);
 
         if (!warnings.isEmpty()) {
 
             if (showWarnings) {
 
                 QHBoxLayout *hLayout = new QHBoxLayout();
 
                 QLabel *labelWarning = new QLabel();
                 labelWarning->setPixmap(KisIconUtils::loadIcon("dialog-warning").pixmap(32, 32));
                 hLayout->addWidget(labelWarning);
 
                 KisPopupButton *bn = new KisPopupButton(0);
 
                 bn->setText(i18nc("Keep the extra space at the end of the sentence, please", "Warning: saving as %1 will lose information from your image.    ", KisMimeDatabase::descriptionForMimeType(mimeType)));
 
 
                 hLayout->addWidget(bn);
 
                 layout->addLayout(hLayout);
 
                 QTextBrowser *browser = new QTextBrowser();
                 browser->setMinimumWidth(bn->width());
                 bn->setPopupWidget(browser);
 
                 QString warning = "<html><body><p><b>"
                         + i18n("You will lose information when saving this image as a %1.", KisMimeDatabase::descriptionForMimeType(typeName));
 
                 if (warnings.size() == 1) {
                     warning += "</b> Reason:</p>";
                 }
                 else {
                     warning += "</b> Reasons:</p>";
                 }
                 warning += "<p/><ul>";
 
                 Q_FOREACH(const QString &w, warnings) {
                     warning += "\n<li>" + w + "</li>";
                 }
 
                 warning += "</ul>";
                 browser->setHtml(warning);
             }
         }
 
         if (wdg) {
             QGroupBox *box = new QGroupBox(i18n("Options"));
             QVBoxLayout *boxLayout = new QVBoxLayout(box);
             wdg->setConfiguration(exportConfiguration);
             boxLayout->addWidget(wdg);
             layout->addWidget(box);
         }
 
 
         QCheckBox *chkAlsoAsKra = 0;
         if (showWarnings && !warnings.isEmpty()) {
             chkAlsoAsKra = new QCheckBox(i18n("Also save your image as a Krita file."));
             chkAlsoAsKra->setChecked(KisConfig().readEntry<bool>("AlsoSaveAsKra", false));
             layout->addWidget(chkAlsoAsKra);
         }
 
         dlg.setMainWidget(page);
         dlg.resize(dlg.minimumSize());
 
         if (showWarnings || wdg) {
             if (!dlg.exec()) {
                 return KisImportExportFilter::UserCancelled;
             }
         }
 
         if (chkAlsoAsKra) {
             KisConfig().writeEntry<bool>("AlsoSaveAsKra", chkAlsoAsKra->isChecked());
             alsoAsKra = chkAlsoAsKra->isChecked();
         }
 
         if (wdg) {
             exportConfiguration = wdg->configuration();
         }
 
     }
 
     KIS_ASSERT_RECOVER_RETURN_VALUE(
                 direction == Import || direction == Export,
                 KisImportExportFilter::BadConversionGraph);
 
     if (!batchMode()) {
         QApplication::setOverrideCursor(Qt::WaitCursor);
     }
 
     KisImportExportFilter::ConversionStatus status = KisImportExportFilter::OK;
     if (direction == Import) {
         status = doImport(location, filter);
     } else /* if (direction == Export) */ {
         status = doExport(location, filter, exportConfiguration);
 
         if (alsoAsKra && status == KisImportExportFilter::OK) {
             QString kraLocation = location + ".kra";
             QByteArray mime = m_document->nativeFormatMimeType();
             QSharedPointer<KisImportExportFilter> filter(
                 filterForMimeType(QString::fromLatin1(mime), Export));
 
             KIS_SAFE_ASSERT_RECOVER_NOOP(filter);
 
             if (filter) {
                 filter->setFilename(kraLocation);
 
                 KisPropertiesConfigurationSP kraExportConfiguration =
                     filter->lastSavedConfiguration(mime, mime);
 
                 status = doExport(kraLocation, filter, kraExportConfiguration);
             } else {
                 status = KisImportExportFilter::FilterCreationError;
             }
         }
     }
 
     if (exportConfiguration) {
         KisConfig().setExportConfiguration(typeName, exportConfiguration);
     }
 
     if (!batchMode()) {
         QApplication::restoreOverrideCursor();
     }
 
     return status;
 
 }
 
 KisImportExportFilter::ConversionStatus KisImportExportManager::doImport(const QString &location, QSharedPointer<KisImportExportFilter> filter)
 {
     QFile file(location);
     if (!file.exists()) {
         return KisImportExportFilter::FileNotFound;
     }
 
     if (filter->supportsIO() && !file.open(QFile::ReadOnly)) {
         return KisImportExportFilter::FileNotFound;
     }
 
     KisImportExportFilter::ConversionStatus status =
         filter->convert(m_document, &file, KisPropertiesConfigurationSP());
 
     if (file.isOpen()) {
         file.close();
     }
 
     return status;
 }
 
 KisImportExportFilter::ConversionStatus KisImportExportManager::doExport(const QString &location, QSharedPointer<KisImportExportFilter> filter, KisPropertiesConfigurationSP exportConfiguration)
 {
     QSaveFile file(location);
     file.setDirectWriteFallback(true);
 
     if (filter->supportsIO() && !file.open(QFile::WriteOnly)) {
         file.cancelWriting();
         return KisImportExportFilter::CreationError;
     }
 
     KisImportExportFilter::ConversionStatus status =
         filter->convert(m_document, &file, exportConfiguration);
 
     if (status != KisImportExportFilter::OK) {
         file.cancelWriting();
     } else {
         file.commit();
     }
 
     return status;
 }
 
 #include <KisMimeDatabase.h>
diff --git a/plugins/impex/png/kis_png_export.cc b/plugins/impex/png/kis_png_export.cc
index 1cc10e3c2f..598fc69e30 100644
--- a/plugins/impex/png/kis_png_export.cc
+++ b/plugins/impex/png/kis_png_export.cc
@@ -1,227 +1,232 @@
 /*
  *  Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "kis_png_export.h"
 
 #include <QCheckBox>
 #include <QSlider>
 #include <QApplication>
 
 #include <kpluginfactory.h>
 
 #include <KoColorSpace.h>
 #include <KisImportExportManager.h>
 #include <KoColorProfile.h>
 #include <KoColorModelStandardIds.h>
 #include <KoColorSpaceRegistry.h>
 
 #include <KisExportCheckRegistry.h>
 
 #include <kis_properties_configuration.h>
 #include <kis_paint_device.h>
 #include <KisDocument.h>
 #include <kis_image.h>
 #include <kis_paint_layer.h>
 #include <kis_group_layer.h>
 #include <kis_config.h>
 #include <kis_properties_configuration.h>
 #include <metadata/kis_meta_data_store.h>
 #include <metadata/kis_meta_data_filter_registry_model.h>
 #include <metadata/kis_exif_info_visitor.h>
 #include "kis_png_converter.h"
 #include <kis_iterator_ng.h>
 
 K_PLUGIN_FACTORY_WITH_JSON(KisPNGExportFactory, "krita_png_export.json", registerPlugin<KisPNGExport>();)
 
 KisPNGExport::KisPNGExport(QObject *parent, const QVariantList &) : KisImportExportFilter(parent)
 {
 }
 
 KisPNGExport::~KisPNGExport()
 {
 }
 
 bool hasVisibleWidgets()
 {
     QWidgetList wl = QApplication::allWidgets();
     Q_FOREACH (QWidget* w, wl) {
         if (w->isVisible() && strcmp(w->metaObject()->className(), "QDesktopWidget")) {
             dbgFile << "Widget " << w << " " << w->objectName() << " " << w->metaObject()->className() << " is visible";
             return true;
         }
     }
     return false;
 }
 
 KisImportExportFilter::ConversionStatus KisPNGExport::convert(KisDocument *document, QIODevice *io,  KisPropertiesConfigurationSP configuration)
 {
     KisImageSP image = document->savingImage();
 
     KisPNGOptions options;
 
     options.alpha = configuration->getBool("alpha", true);
     options.interlace = configuration->getBool("interlaced", false);
     options.compression = configuration->getInt("compression", 3);
     options.tryToSaveAsIndexed = configuration->getBool("indexed", false);
     options.transparencyFillColor = configuration->getColor("transparencyFillColor").toQColor();
     options.saveSRGBProfile = configuration->getBool("saveSRGBProfile", false);
     options.forceSRGB = configuration->getBool("forceSRGB", true);
 
     vKisAnnotationSP_it beginIt = image->beginAnnotations();
     vKisAnnotationSP_it endIt = image->endAnnotations();
 
     KisExifInfoVisitor eIV;
     eIV.visit(image->rootLayer().data());
     KisMetaData::Store *eI = 0;
     if (eIV.countPaintLayer() == 1) {
         eI = eIV.exifInfo();
     }
     if (eI) {
         KisMetaData::Store* copy = new KisMetaData::Store(*eI);
         eI = copy;
     }
 
     KisPNGConverter pngConverter(document);
 
     KisImageBuilder_Result res = pngConverter.buildFile(io, image->bounds(), image->xRes(), image->yRes(), image->projection(), beginIt, endIt, options, eI);
 
     if (res == KisImageBuilder_RESULT_OK) {
         delete eI;
         return KisImportExportFilter::OK;
     }
 
     delete eI;
     dbgFile << " Result =" << res;
     return KisImportExportFilter::InternalError;
 }
 
 KisPropertiesConfigurationSP KisPNGExport::defaultConfiguration(const QByteArray &, const QByteArray &) const
 {
     KisPropertiesConfigurationSP cfg = new KisPropertiesConfiguration();
     cfg->setProperty("alpha", true);
     cfg->setProperty("indexed", false);
     cfg->setProperty("compression", 3);
     cfg->setProperty("interlaced", false);
     cfg->setProperty("transparencyFillcolor", QString("255,255,255"));
     cfg->setProperty("saveSRGBProfile", false);
     cfg->setProperty("forceSRGB", true);
 
     return cfg;
 }
 
 KisPropertiesConfigurationSP KisPNGExport::lastSavedConfiguration(const QByteArray &from, const QByteArray &to) const
 {
     QString filterConfig = KisConfig().exportConfiguration("PNG");
     KisPropertiesConfigurationSP cfg = defaultConfiguration(from, to);
     cfg->fromXML(filterConfig, false);
     return cfg;
 }
 
 KisConfigWidget *KisPNGExport::createConfigurationWidget(QWidget *parent, const QByteArray &, const QByteArray &) const
 {
     return new KisWdgOptionsPNG(parent);
 }
 
 void KisPNGExport::initializeCapabilities()
 {
     addCapability(KisExportCheckRegistry::instance()->get("sRGBProfileCheck")->create(KisExportCheckBase::SUPPORTED));
     QList<QPair<KoID, KoID> > supportedColorModels;
     supportedColorModels << QPair<KoID, KoID>()
             << QPair<KoID, KoID>(RGBAColorModelID, Integer8BitsColorDepthID)
             << QPair<KoID, KoID>(RGBAColorModelID, Integer16BitsColorDepthID)
             << QPair<KoID, KoID>(GrayAColorModelID, Integer8BitsColorDepthID)
             << QPair<KoID, KoID>(GrayAColorModelID, Integer16BitsColorDepthID);
     addSupportedColorModels(supportedColorModels, "PNG");
 }
 
 void KisWdgOptionsPNG::setConfiguration(const KisPropertiesConfigurationSP cfg)
 {
-    bool isThereAlpha = cfg->getBool("isThereAlpha");
+    // the export manager should have prepared some info for us!
+    KIS_SAFE_ASSERT_RECOVER_NOOP(cfg->hasProperty(KisImportExportFilter::ImageContainsTransparencyTag));
+    KIS_SAFE_ASSERT_RECOVER_NOOP(cfg->hasProperty(KisImportExportFilter::ColorModelIDTag));
+    KIS_SAFE_ASSERT_RECOVER_NOOP(cfg->hasProperty(KisImportExportFilter::sRGBTag));
+
+    const bool isThereAlpha = cfg->getBool(KisImportExportFilter::ImageContainsTransparencyTag);
 
     alpha->setChecked(cfg->getBool("alpha", isThereAlpha));
 
-    if (cfg->getString("ColorModelID") == RGBAColorModelID.id()) {
+    if (cfg->getString(KisImportExportFilter::ColorModelIDTag) == RGBAColorModelID.id()) {
         tryToSaveAsIndexed->setVisible(true);
         if (alpha->isChecked()) {
             tryToSaveAsIndexed->setChecked(false);
         }
         else {
             tryToSaveAsIndexed->setChecked(cfg->getBool("indexed", false));
         }
     }
     else {
         tryToSaveAsIndexed->setVisible(false);
     }
     interlacing->setChecked(cfg->getBool("interlaced", false));
     compressionLevel->setValue(cfg->getInt("compression", 3));
     compressionLevel->setRange(1, 9 , 0);
 
     alpha->setEnabled(isThereAlpha);
     tryToSaveAsIndexed->setVisible(!isThereAlpha);
 
     bnTransparencyFillColor->setEnabled(!alpha->isChecked());
 
-    bool sRGB = cfg->getBool("sRGB", false);
+    const bool sRGB = cfg->getBool(KisImportExportFilter::sRGBTag, false);
 
     chkSRGB->setEnabled(sRGB);
     chkSRGB->setChecked(cfg->getBool("saveSRGBProfile", true));
 
     chkForceSRGB->setEnabled(!sRGB);
     chkForceSRGB->setChecked(cfg->getBool("forceSRGB", false));
 
     QStringList rgb = cfg->getString("transparencyFillcolor", "0,0,0").split(',');
     KoColor c(KoColorSpaceRegistry::instance()->rgb8());
     c.fromQColor(Qt::white);
     bnTransparencyFillColor->setDefaultColor(c);
     c.fromQColor(QColor(rgb[0].toInt(), rgb[1].toInt(), rgb[2].toInt()));
     bnTransparencyFillColor->setColor(c);
 
 }
 
 KisPropertiesConfigurationSP KisWdgOptionsPNG::configuration() const
 {
 
     KisPropertiesConfigurationSP cfg(new KisPropertiesConfiguration());
 
     bool alpha = this->alpha->isChecked();
     bool interlace = interlacing->isChecked();
     int compression = (int)compressionLevel->value();
     bool tryToSaveAsIndexed = this->tryToSaveAsIndexed->isChecked();
     QColor c = bnTransparencyFillColor->color().toQColor();
     bool saveSRGB = chkSRGB->isChecked();
     bool forceSRGB = chkForceSRGB->isChecked();
 
     cfg->setProperty("alpha", alpha);
     cfg->setProperty("indexed", tryToSaveAsIndexed);
     cfg->setProperty("compression", compression);
     cfg->setProperty("interlaced", interlace);
     cfg->setProperty("transparencyFillcolor", QString("%1,%2,%3").arg(c.red()).arg(c.green()).arg(c.blue()));
     cfg->setProperty("saveSRGBProfile", saveSRGB);
     cfg->setProperty("forceSRGB", forceSRGB);
 
     return cfg;
 }
 
 void KisWdgOptionsPNG::on_alpha_toggled(bool checked)
 {
     bnTransparencyFillColor->setEnabled(!checked);
 }
 
 #include "kis_png_export.moc"