Adobe s official version of PDF Viewer for Android, decompiled from the apk file, and this Java source code can supply you a help of learning the implementation of PDF Viewer on the Android.

androswing\tree\DefaultMutableTreeNode.java
com\sun\pdfview\Watchable.java
...\...\.......\BaseWatchable.java
...\...\.......\Cache.java
...\...\.......\HexDump.java
...\...\.......\Identity8BitCharsetEncoder.java
...\...\.......\ImageInfo.java
...\...\.......\NameTree.java
...\...\.......\OutlineNode.java
...\...\.......\PDFCmd.java
...\...\.......\PDFChangeStrokeCmd.java
...\...\.......\PDFDestination.java
...\...\.......\PDFDocCharsetEncoder.java
...\...\.......\PDFFile.java
...\...\.......\PDFFillAlphaCmd.java
...\...\.......\PDFFillPaintCmd.java
...\...\.......\PDFImage.java
...\...\.......\PDFImageCmd.java
...\...\.......\PDFNativeTextCmd.java
...\...\.......\PDFObject.java
...\...\.......\PDFPage.java
...\...\.......\PDFPaint.java
...\...\.......\PDFParseException.java
...\...\.......\PDFParser.java
...\...\.......\PDFPopCmd.java
...\...\.......\PDFPushCmd.java
...\...\.......\PDFRenderer.java
...\...\.......\PDFShapeCmd.java
...\...\.......\PDFStringUtil.java
...\...\.......\PDFStrokeAlphaCmd.java
...\...\.......\PDFStrokePaintCmd.java
...\...\.......\PDFTextFormat.java
...\...\.......\PDFXformCmd.java
...\...\.......\PDFXref.java
...\...\.......\RefImage.java
...\...\.......\action\PDFAction.java
...\...\.......\......\GoToAction.java
...\...\.......\colorspace\PDFColorSpace.java
...\...\.......\..........\AlternateColorSpace.java
...\...\.......\..........\CMYKColorSpace.java
...\...\.......\..........\GrayColorSpace.java
...\...\.......\..........\IndexedColor.java
...\...\.......\..........\IndexedColorSpace.java
...\...\.......\..........\RGBColorSpace.java
...\...\.......\decode\ASCII85Decode.java
...\...\.......\......\ASCIIHexDecode.java
...\...\.......\......\CCITTFaxDecode.java
...\...\.......\......\CCITTFaxDecoder.java
...\...\.......\......\DCTDecode.java
...\...\.......\......\FlateDecode.java
...\...\.......\......\LZWDecode.java
...\...\.......\......\PDFDecoder.java
...\...\.......\......\Predictor.java
...\...\.......\......\PNGPredictor.java
...\...\.......\......\RunLengthDecode.java
...\...\.......\...rypt\PDFDecrypter.java
...\...\.......\.......\CryptFilterDecrypter.java
...\...\.......\.......\UnsupportedEncryptionException.java
...\...\.......\.......\EncryptionUnsupportedByPlatformException.java
...\...\.......\.......\EncryptionUnsupportedByProductException.java
...\...\.......\.......\IdentityDecrypter.java
...\...\.......\.......\PDFAuthenticationFailureException.java
...\...\.......\.......\PDFDecrypterFactory.java
...\...\.......\.......\PDFPassword$1.java
...\...\.......\.......\PDFPassword.java
...\...\.......\.......\StandardDecrypter.java
...\...\.......\font\PDFFont.java
...\...\.......\....\OutlineFont.java
...\...\.......\....\Type1Font.java
...\...\.......\....\BuiltinFont.java
...\...\.......\....\TTFFont.java
...\...\.......\....\CIDFontType2.java
...\...\.......\....\FlPoint.java
...\...\.......\....\FontSupport.java
...\...\.......\....\PDFCMap.java
...\...\.......\....\PDFCMap$1.java
...\...\.......\....\PDFFontDescriptor.java
...\...\.......\....\PDFFontEncoding.java
...\...\.......\....\PDFGlyph.java
...\...\.......\....\Type0Font.java
...\...\.......\....\Type1CFont.java
...\...\.......\....\Type3Font.java
...\...\.......\....\ttf\AdobeGlyphList$1.java
...\...\.......\....\...\AdobeGlyphList.java
...\...\.......\....\...\CMap.java
...\...\.......\....\...\CMapFormat0.java
...\...\.......\....\...\CMapFormat4.java
...\...\.......\....\...\CMapFormat6.java
...\...\.......\....\...\TrueTypeTable.java
...\...\.......\....\...\CmapTable.java
...\...\.......\....\...\Glyf.java
...\...\.......\....\...\GlyfCompound.java
...\...\.......\....\...\GlyfSimple.java
...\...\.......\....\...\GlyfTable.java
...\...\.......\....\...\HeadTable.java
...\...\.......\....\...\HheaTable.java
...\...\.......\....\...\HmtxTable.java
...\...\.......\....\...\LocaTable.java
...\...\.......\....\...\MaxpTable.java
...\...\.......\....\...\NameTable.java

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