MobileRead Forums - View Single Post

DiapDealer · 09-14-2012, 02:45 PM

I'm frankly baffled. According to debug print statements (in read_font_record and write_font_record) when converting via the command-line, calibre is always obfuscating the fonts -- stand-alone KF8 or joint file.

I need to revisit Mobi_Unpack's handling of obfuscated fonts, because it unpacks the joint file's fonts as unobfuscated and the standalone file's fonts as obfuscated (although I know the same font handling routine handles joint vs stand-alone KF8s).

EDIT: I think I'll just change calibre's write_font_record to:

Code:

def write_font_record(data, obfuscate=False, compress=True):

for now. Always unobfuscated in KF8.

I know Kindlegen/KindePreviewer doesn't produce xor'd, obfuscated fonts (I think Amazon only obfuscates them before/upon delivery).

09-14-2012, 02:45 PM	#6
DiapDealer Grand Sorcerer Posts: 28,358 Karma: 203720150 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I'm frankly baffled. According to debug print statements (in read_font_record and write_font_record) when converting via the command-line, calibre is always obfuscating the fonts -- stand-alone KF8 or joint file. I need to revisit Mobi_Unpack's handling of obfuscated fonts, because it unpacks the joint file's fonts as unobfuscated and the standalone file's fonts as obfuscated (although I know the same font handling routine handles joint vs stand-alone KF8s). EDIT: I think I'll just change calibre's write_font_record to: Code: def write_font_record(data, obfuscate=False, compress=True): for now. Always unobfuscated in KF8. I know Kindlegen/KindePreviewer doesn't produce xor'd, obfuscated fonts (I think Amazon only obfuscates them before/upon delivery). Last edited by DiapDealer; 09-14-2012 at 03:01 PM.