35 lines
1.6 KiB
Plaintext
35 lines
1.6 KiB
Plaintext
This stuff would be great
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- improved access to document level objects and data
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- bookmarks?
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- outline?
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- articles?
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- viewer prefs?
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- Improve the speed of Encoding#to_utf8
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- Tweak encoding mappings to differentiate between bytes that are invalid for an encoding, and bytes that are unchanged.
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poppler seems to do this in a quite reasonable way. Original Encoding -> Glyph Names -> Unicode. As of 0.6 we go straight
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from the Original encoding to Unicode.
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- detect when a font's encoding is a CMap (generally used for pre-Unicode, multibyte asian encodings), and display a user friendly error
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- Improve interpretation of non content stream data (ie metadata). recognise dates, etc
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This might be useful, more research required
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- Support for CJK text (convert to UTF-8 like all other encodings. See Section 5.9 of the PDF spec)
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- Will require significantly improved handling of CMaps, including creating a bunch of predefined ones
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- Work out why specs/data/zlib*.pdf isn't parsed correctly when all the major PDF viewers can display it correctly
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- Ship some extra receivers in the standard package, particuarly ones that are useful for running
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rspec over generated PDF files
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- Add support for additional filters: CCITTFaxDecode, JBIG2Decode, DCTDecode, JPXDecode
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- Add support for additional encodings:
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- Identity-V(I *think* this relates to vertical text. Not sure how we'd support it sensibly)
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- Investigate how R->L text is handled
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- fix all callbacks to only ever return basic ruby objects (strings, ints,
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attays, symbols, hashes, etc). No PDF::Reader::Reference or
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PDF::Reader::Font, etc.
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