MobileRead Forums - View Single Post - [PDF] Text to image: pdftocairo or pdftoppm?

Shohreh · 04-29-2020, 02:37 PM

Since, unlike Poppler, the Windows version of MuPDF is up to date, I'm giving mutool as try.

Unless I missed it, the only way to turn pages of a PDF into pictures is to a) split the file into individual PDF files (one page = one PDF), b) turn the PDF into a PNG, c) turn the PNG into a PDF, and then d) merge all the PDF files back into a single file.

1. For some reason, the 40KB PNG turns into a 2MB PDF:

#212 dpi, 768x1024
mutool draw -r 212 -w 768 -h 1024 -o 30.png input.pdf 30

#From 40KB to 2MB!
mutool draw -o 30.pdf 30.png

2. Is there a way to crop the pictures, as way to get rid of the borders?

Thank you.

--
Edit: Found it.

Code:

mutool convert -O compress -o 30.pdf 30.png

04-29-2020, 02:37 PM	#4
Shohreh Addict Posts: 207 Karma: 304158 Join Date: Jan 2016 Location: France Device: none	Since, unlike Poppler, the Windows version of MuPDF is up to date, I'm giving mutool as try. Unless I missed it, the only way to turn pages of a PDF into pictures is to a) split the file into individual PDF files (one page = one PDF), b) turn the PDF into a PNG, c) turn the PNG into a PDF, and then d) merge all the PDF files back into a single file. 1. For some reason, the 40KB PNG turns into a 2MB PDF: #212 dpi, 768x1024 mutool draw -r 212 -w 768 -h 1024 -o 30.png input.pdf 30 #From 40KB to 2MB! mutool draw -o 30.pdf 30.png 2. Is there a way to crop the pictures, as way to get rid of the borders? Thank you. -- Edit: Found it. Code: mutool convert -O compress -o 30.pdf 30.png Attached Thumbnails Last edited by Shohreh; 04-29-2020 at 03:20 PM.