How to Compare Large Files

Report · Mar 22, 2017

I work for the computer processor maker Advanced Micro Devices (AMD). I often have to compare two PDF files to show the changes between the two documents. Even files as small as 2 MB fail to complete, even after choosing the "compare text only" feature. What is the upper limit of file size or page number when comparing two PDF files. Is the failure the fault of my computer? How much computing power do I need? If Adobe Acrobat cannot perform this function, do you have any recommendations on how I can compare two large PDF files to identify differences?

Report · Apr 17, 2017

Hi chrish14679019,

Sorry for the inconvenience caused.

Would you please let us know the version of Acrobat you are using to compare the files? Is it Acrobat DC or Acrobat XI?

There is no such limit for the page files or size of the file which could limit this functionality. The process might take a while but it should be working fine.

Is it possible for you to share the files with us? If yes, How to share a document via a private message: How Do I Send Private Message

Will be waiting for your response.

-Tariq Dar.

Report · Apr 17, 2017

Hi Tariq,

Thanks for your response. I am using Adobe Acrobat Xl, version 11.0.19. Unfortunately, I'm unable to share the files with you as to not violate AMD proprietary information or Intellectual Property policies. I see that through this interface I'm unable to attach two screenshots of a dialogs that appear. One says the app will be "unresponsive" when I compare two documents that are just over 500 pages. The other dialog says the "operation is incomplete" when comparing two documents that are 211 pages. Neither of these responses are acceptable. If there's a way to share these two jpegs, please let me know.

Thank you for any help you can provide.

Chris

Report · Apr 17, 2017

You can attach images to your replies. Reply through the forums directly (ie, not via email), and then use the Insert Image icon to add your images to the reply:

Report · Apr 17, 2017

I see how to add images! Thank you.

Shared Files - Acrobat.com

Also

Report · Mar 27, 2018

I am also not having success with larger files. I am comparing a file that has over 20,000 pages. This data is highly sensitive. I am using Acrobat DC. I have also tried TEXT ONLY. Acrobat DC will crash. Is there a way to do this comparison in Adobe XI??