diff --git a/jni/NativeFormats/fbreader/src/formats/FormatPlugin.h b/jni/NativeFormats/fbreader/src/formats/FormatPlugin.h
index bf5fc5240..ba58243b6 100644
--- a/jni/NativeFormats/fbreader/src/formats/FormatPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/FormatPlugin.h
@@ -58,6 +58,7 @@ public:
 
 	virtual const std::string &tryOpen(const ZLFile &file) const;
 	virtual bool readMetaInfo(Book &book) const = 0;
+	virtual bool readUids(Book &book) const = 0;
 	virtual bool readLanguageAndEncoding(Book &book) const = 0;
 	virtual bool readModel(BookModel &model) const = 0;
 	virtual shared_ptr<const ZLImage> coverImage(const ZLFile &file) const;
diff --git a/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.cpp b/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.cpp
index 3a8a9aef8..cb998d811 100644
--- a/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.cpp
@@ -62,6 +62,10 @@ bool DocPlugin::readMetaInfo(Book &book) const {
 	return true;
 }
 
+bool DocPlugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool DocPlugin::readLanguageAndEncoding(Book &/*book*/) const {
 	return true;
 }
diff --git a/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.h b/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.h
index 65f97c29f..102a8b55f 100644
--- a/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/doc/DocPlugin.h
@@ -32,6 +32,7 @@ public:
 	const std::string supportedFileType() const;
 	bool acceptsFile(const ZLFile &file) const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 };
diff --git a/jni/NativeFormats/fbreader/src/formats/fb2/FB2MetaInfoReader.h b/jni/NativeFormats/fbreader/src/formats/fb2/FB2MetaInfoReader.h
index e5ecc7dab..0e48ba7aa 100644
--- a/jni/NativeFormats/fbreader/src/formats/fb2/FB2MetaInfoReader.h
+++ b/jni/NativeFormats/fbreader/src/formats/fb2/FB2MetaInfoReader.h
@@ -50,7 +50,9 @@ private:
 		READ_AUTHOR_NAME_1,
 		READ_AUTHOR_NAME_2,
 		READ_LANGUAGE,
-		READ_GENRE
+		READ_GENRE,
+		READ_DOCUMENT_INFO,
+		READ_ID
 	} myReadState;
 
 	std::string myAuthorNames[3];
diff --git a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.cpp b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.cpp
index 6879c473a..33f715b37 100644
--- a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.cpp
@@ -33,6 +33,10 @@ bool FB2Plugin::readMetaInfo(Book &book) const {
 	return FB2MetaInfoReader(book).readMetaInfo();
 }
 
+bool FB2Plugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool FB2Plugin::readModel(BookModel &model) const {
 	return FB2BookReader(model).readBook();
 }
diff --git a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.h b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.h
index 785196599..746efdf7a 100644
--- a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Plugin.h
@@ -30,6 +30,7 @@ public:
 	bool providesMetaInfo() const;
 	const std::string supportedFileType() const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 	shared_ptr<const ZLImage> coverImage(const ZLFile &file) const;
diff --git a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Reader.h b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Reader.h
index 5a299411a..667417ea0 100644
--- a/jni/NativeFormats/fbreader/src/formats/fb2/FB2Reader.h
+++ b/jni/NativeFormats/fbreader/src/formats/fb2/FB2Reader.h
@@ -81,6 +81,8 @@ public:
 		_COVERPAGE,
 		_SEQUENCE,
 		_GENRE,
+		_DOCUMENT_INFO,
+		_ID,
 		_UNKNOWN
 	};
 
diff --git a/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.cpp b/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.cpp
index 4e3bdb013..ab311d652 100644
--- a/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.cpp
@@ -50,6 +50,10 @@ bool HtmlPlugin::readMetaInfo(Book &book) const {
 	return true;
 }
 
+bool HtmlPlugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool HtmlPlugin::readModel(BookModel &model) const {
 	const Book& book = *model.book();
 	const ZLFile &file = book.file();
diff --git a/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.h b/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.h
index ef6bc25cb..1e31e405c 100644
--- a/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/html/HtmlPlugin.h
@@ -30,6 +30,7 @@ public:
 	bool providesMetaInfo() const;
 	const std::string supportedFileType() const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 //	FormatInfoPage *createInfoPage(ZLOptionsDialog &dialog, const ZLFile &file);
diff --git a/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.cpp b/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.cpp
index f90e1f901..8ad189cd4 100644
--- a/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.cpp
@@ -123,6 +123,10 @@ bool OEBPlugin::readMetaInfo(Book &book) const {
 	return OEBMetaInfoReader(book).readMetaInfo(opfFile(file));
 }
 
+bool OEBPlugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool OEBPlugin::readModel(BookModel &model) const {
 	const ZLFile &file = model.book()->file();
 	return OEBBookReader(model).readBook(opfFile(file));
diff --git a/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.h b/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.h
index d462d8275..0e4de6524 100644
--- a/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/oeb/OEBPlugin.h
@@ -32,6 +32,7 @@ public:
 	bool providesMetaInfo() const;
 	const std::string supportedFileType() const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 	shared_ptr<const ZLImage> coverImage(const ZLFile &file) const;
diff --git a/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.cpp b/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.cpp
index f5eac05ad..215bc3c08 100644
--- a/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.cpp
@@ -54,6 +54,10 @@ bool RtfPlugin::readMetaInfo(Book &book) const {
 	return true;
 }
 
+bool RtfPlugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool RtfPlugin::readModel(BookModel &model) const {
 	const Book &book = *model.book();
 	return RtfBookReader(model, book.encoding()).readDocument(book.file());
diff --git a/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.h b/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.h
index 7a83a179f..bcc2203ea 100644
--- a/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/rtf/RtfPlugin.h
@@ -28,6 +28,7 @@ public:
 	bool providesMetaInfo() const;
 	const std::string supportedFileType() const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 };
diff --git a/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.cpp b/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.cpp
index 9626e7ee5..ddcc6ec52 100644
--- a/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.cpp
+++ b/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.cpp
@@ -65,6 +65,10 @@ bool TxtPlugin::readModel(BookModel &model) const {
 //	return new PlainTextInfoPage(dialog, file, ZLResourceKey("Text"), true);
 //}
 
+bool TxtPlugin::readUids(Book &/*book*/) const {
+	return true;
+}
+
 bool TxtPlugin::readLanguageAndEncoding(Book &book) const {
 	shared_ptr<ZLInputStream> stream = book.file().inputStream();
 	if (stream.isNull()) {
diff --git a/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.h b/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.h
index 50834f88b..1ea91ecd9 100644
--- a/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.h
+++ b/jni/NativeFormats/fbreader/src/formats/txt/TxtPlugin.h
@@ -29,6 +29,7 @@ public:
 	bool providesMetaInfo() const;
 	const std::string supportedFileType() const;
 	bool readMetaInfo(Book &book) const;
+	bool readUids(Book &book) const;
 	bool readLanguageAndEncoding(Book &book) const;
 	bool readModel(BookModel &model) const;
 //	FormatInfoPage *createInfoPage(ZLOptionsDialog &dialog, const ZLFile &file);