It's probably Kindle software fault. Seen it on Kindle PW1 with activated hidden "text only" mode for PDFs. Can't remember if the problem with garbled text (random spaces breaking up words) was present only for "searchable PDFs" generated directly via Abbyy FineReader, or if it was also the case for FineReader>edits in Word> export as "searchable" PDF also. I do remember that the same "problematic PDF" worked as expected in KOreader while viewed in text reflow mode.
|