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v0.8- add extra callbacks - list implemented features - encrypted? tagged? bookmarks? annotated? optimised?- Allow more than just page content and metadata to be parsed (see spec section 3.6.1) - bookmarks? - outline? - articles? - viewer prefs?- Don't remove comment when tokenising in the middle of a string- Tweak encoding mappings to differentiate between bytes that are invalid for an encoding, and bytes that are unchanged. poppler seems to do this in a quite reasonable way. Original Encoding -> Glyph Names -> Unicode. As of 0.6 we go straight from the Original encoding to Unicode.- detect when a font's encoding is a CMap (generally used for pre-Unicode, multibyte asian encodings), and display a user friendly error- Improve interpretation of non content stream data (ie metadata). recognise dates, etc- Fix inheritance of page attributes. Resources has been done, but plenty of other attributes are inheritable. See table 3.2.7 in the specv0.9- Add a way to extract raster images - see XObjects section of spec (section 4.7)- Add a way to extract font data?Sometime- Support for CJK text (convert to UTF-8 like all other encodings. See Section 5.9 of the PDF spec) - Will require significantly improved handling of CMaps, including creating a bunch of predefined ones- Work out why specs/data/zlib*.pdf isn't parsed correctly when all the major PDF viewers can display it correctly- Ship some extra receivers in the standard package, particuarly ones that are useful for running rspec over generated PDF files- When we encounter Identity-H encoded text with no ToUnicode CMap, render the glyphs and treat them as images, as there's no sensible way to convert them to unicode- Add support for additional filters: ASCIIHexDecode, ASCII85Decode, LZWDecode, RunLengthDecode, CCITTFaxDecode, JBIG2Decode, DCTDecode, JPXDecode, Crypt?- Add support for additional encodings: - Identity-V(I *think* this relates to vertical text. Not sure how we'd support it sensibly)- Investigate how R->L text is handled- fix all callbacks to only ever return basic ruby objects (strings, ints, attays, symbols, hashes, etc). No PDF::Reader::Reference or PDF::Reader::Font, etc.