Answers.Body: <p>I found <a href="https://code.google.com/archive/p/papercrop/" rel="noreferrer">PaperCrop</a> a very useful and powerful tool. It is free and highly customizable so you can either relay to automatic detection of columns and sections by program or customize each page format.</p>
  
  <p><a href="https://i.sstatic.net/SneM7.jpg" rel="noreferrer"><img src="https://i.sstatic.net/SneM7.jpg" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-03-10T15:46:43.597Z
Answers.LastActivityDate: 2016-03-10T15:46:43.597Z
Answers.UserDisplayName: Sadegh
Answers.Body: <p>I have created a python code for this purpose. It solves my problem and hope it will be helpful for others.</p>
  
  <p>Background : I had 2 sided pdf document which I had to zoom for clarity. I decide to create this python application which will break 2 column page into 4 pages.</p>
  
  <p>If you don't understand then : just run python3 main.py, and see if it is what you are looking into.</p>
  
  <p><a href="https://github.com/jojyjoseph/PDF-1-2-column-customization-for-Kindle" rel="nofollow noreferrer">https://github.com/jojyjoseph/PDF-1-2-column-customization-for-Kindle</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-21T14:29:33.117Z
Answers.Text: Welcome to SE-ebooks.  Your answer seems quite useful, thanks. But it may take a while for reactions because the question is 2 years old.  Just so that you do not wonder.
Answers.UserDisplayName: babou
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-21T02:34:18.907Z
Answers.LastActivityDate: 2018-10-21T02:34:18.907Z
Answers.UserDisplayName: jojy joseph
Answers.Body: <p>I found this small Java utility [1].</p>
  <p>Very simple to setup and quick to use and gives a pretty nice result on my Kindle.</p>
  <p>[1] <a href="https://www.cp.eng.chula.ac.th/%7Esomchai/cut2col/" rel="nofollow noreferrer">https://www.cp.eng.chula.ac.th/~somchai/cut2col/</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-27T18:01:46.290Z
Answers.LastActivityDate: 2023-01-27T18:01:46.290Z
Answers.UserDisplayName: Lucas Eduardo
Body: <p>What is the best way to convert multi-column PDF file into readable format in a 6 inch display devices like kindle? </p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T08:40:12.577Z
Comments.Text: are these PDFs scanned images or text files that are re-wrappable?
Comments.UserDisplayName: Anthon
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T08:42:01.840Z
Comments.Text: I dont know if it works well with scanned image. you may give it a try. I guess it is not suitable for scanned images
Comments.UserDisplayName: Sadegh
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T08:46:43.703Z
Comments.Text: Why would I need to give it a try with what? I already converted scanned images, it is just cumbersome. Your question isn't clear about the PDF content **you** have, and that influences what kind of answers are useful for you.
Comments.UserDisplayName: Anthon
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T08:49:03.437Z
Comments.Text: my question is clear. your comment is not clear: "are these PDFs scanned images or text files that are re-wrappable?"
Comments.UserDisplayName: Sadegh
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T09:26:22.457Z
Comments.Text: Referring to the PDF 1.7 specification: does your PDF have any of the standard decompression filters to render your page content, or does it specify text with TwoColumnXXXX in the PageLayout? Both can **look**  the same but need completely different approaches to display readable on a 6 inch device.
Comments.UserDisplayName: Anthon
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-14T09:33:33.297Z
Comments.Text: this is not a question about a specific file or a specific group of files. One may provide different answers which works for different type of PDFs
Comments.UserDisplayName: Sadegh
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-18T00:15:01.400Z
Comments.Text: No the question  is unclear - in Stack Exchange questions should really only have one answer. You provide different questions for each type
Comments.UserDisplayName: mmmmmm
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-03-21T05:03:22.190Z
Comments.Text: Possible duplicate of [Reading PDFs on Kindle device](http://ebooks.stackexchange.com/questions/15/reading-pdfs-on-kindle-device)
Comments.UserDisplayName: vusan
Tags: <kindle><pdf><conversion><file-format>
Title: How convert multi-column PDF files to readable PDF in 6 inches display devices?
UserDisplayName: Sadegh
ThreadText: # How convert multi-column PDF files to readable PDF in 6 inches display devices?
  
  (Asked by: username_0 on 2016-03-10)
  
  What is the best way to convert multi-column PDF file into readable format in a 6 inch display devices like kindle?
  
  **Tags:** kindle, pdf, conversion, file-format
  
  > **Comments:**
  > **username_1**: are these PDFs scanned images or text files that are re-wrappable?  
  > **username_0**: I dont know if it works well with scanned image. you may give it a try. I guess it is not suitable for scanned images  
  > **username_1**: Why would I need to give it a try with what? I already converted scanned images, it is just cumbersome. Your question isn't clear about the PDF content **you** have, and that influences what kind of answers are useful for you.  
  > **username_0**: my question is clear. your comment is not clear: "are these PDFs scanned images or text files that are re-wrappable?"  
  > **username_1**: Referring to the PDF 1.7 specification: does your PDF have any of the standard decompression filters to render your page content, or does it specify text with TwoColumnXXXX in the PageLayout? Both can **look**  the same but need completely different approaches to display readable on a 6 inch device.  
  > **username_0**: this is not a question about a specific file or a specific group of files. One may provide different answers which works for different type of PDFs  
  > **username_2**: No the question  is unclear - in Stack Exchange questions should really only have one answer. You provide different questions for each type  
  > **username_3**: Possible duplicate of [Reading PDFs on Kindle device](http://ebooks.stackexchange.com/questions/15/reading-pdfs-on-kindle-device)  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_0 on 2016-03-10. Score: 6
  
  I found [PaperCrop](https://code.google.com/archive/p/papercrop/) a very useful and powerful tool. It is free and highly customizable so you can either relay to automatic detection of columns and sections by program or customize each page format.
  
  [![enter image description here](https://i.sstatic.net/SneM7.jpg)](https://i.sstatic.net/SneM7.jpg)
  
  
  ---
  
  ### Answer by username_4 on 2018-10-21. Score: 4
  
  I have created a python code for this purpose. It solves my problem and hope it will be helpful for others.
  
  Background : I had 2 sided pdf document which I had to zoom for clarity. I decide to create this python application which will break 2 column page into 4 pages.
  
  If you don't understand then : just run python3 main.py, and see if it is what you are looking into.
  
  <https://github.com/jojyjoseph/PDF-1-2-column-customization-for-Kindle>
  
  > **Comments:**
  > **username_5**: Welcome to SE-ebooks.  Your answer seems quite useful, thanks. But it may take a while for reactions because the question is 2 years old.  Just so that you do not wonder.  
  
  ---
  
  ### Answer by username_6 on 2023-01-27. Score: 1
  
  I found this small Java utility [1].
  
  Very simple to setup and quick to use and gives a pretty nice result on my Kindle.
  
  [1] [https://www.cp.eng.chula.ac.th/~somchai/cut2col/](https://www.cp.eng.chula.ac.th/%7Esomchai/cut2col/)
  
  
  ---
  
  