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Old 02-24-2021, 11:44 AM   #1854
VladimirS
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Posts: 67
Karma: 358058
Join Date: Aug 2019
Location: Serbia, former Yugoslavia
Device: Pocketbook InkPad 3
Important PDF edit advice

@Mr.Willus,
creator of remarkable piece of software - K2pdfopt

First, thank you thousand times for K2pdfopt !

Mr. Willus, can you give us some basic tips how to create,
or maybe, better to say EDIT, any existing PDF file,
which is scanned PDF, with or without OCR layer,
in order to make it lighter for our e-ink devices
(lighter in terms of hardware requirements CPU, RAM etc),
which is easily recognised as surplus time delay when turning pages.

Your software is great tool which most of use use to
split scanned PDF files, which are originally scaned
as 2 pages on one page. Command line command is
(k2pdfopt -mode copy -grid 2x1x0 -w 0.5s -h 1s file.pdf)




Which properties of PDF file, like:

1) number of pages in PDF
(possible solution - reduce number of pages by splitting file)

2) page size in pixels
(possible solution - reduce resolution using -ds option)

3) resolution of scanned PDF (with or without OCR)
(possible solution - reduce resolution using -ds option)

4) PDF version (1.3, 1.4, 1.5, 1.6 etc)
(possible solution - convert PDF with some tool to lower version)

5) integrated elements inside pages (bookmarks, table of contents)
(possible solution - remove unnecessary TOC and bookmarks)



What are the steps (if they exist) we can take in order to
speed up file manupulation with our e-ink devices.
I think this question bothers many e-ink device owners.

Thank you in advance for your advices!

Last edited by VladimirS; 02-24-2021 at 12:11 PM. Reason: adding some ideas to question
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