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https://issues.apache.org/jira/browse/PDFBOX-5216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17365241#comment-17365241
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yoonho edited comment on PDFBOX-5216 at 6/18/21, 5:08 AM:
----------------------------------------------------------

[~mkl]

Hello, I read your answer carefully. This seems to be a difficult problem for 
me. I just tried to optimize a new PDF document(file attached) using your code. 
But even after an hour The job is not completed. Is it simply because there are 
many objects that need to be processed?

Thank you for your help.

[http://gofile.me/4hSqO/YEamVqsSD] - sample pdf


was (Author: chae):
[~mkl]

Hello, I read your answer carefully. This seems to be a difficult problem for 
me. I just tried to optimize a new PDF document(file attached) using your code. 
But even after an hour The job is not completed. Is it simply because there are 
many objects that need to be processed?

[http://gofile.me/4hSqO/YEamVqsSD] - sample pdf

> Is there a way to optimize by cleaning up duplicate objects?
> ------------------------------------------------------------
>
>                 Key: PDFBOX-5216
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5216
>             Project: PDFBox
>          Issue Type: Wish
>            Reporter: yoonho
>            Priority: Major
>         Attachments: samepage.png, 스크린샷 2021-06-15 오후 2.02.21.png
>
>
> Is there a way to clean up duplicate objects using PDFBox?
> [http://gofile.me/4hSqO/Cis33w0Sa] - Original
> [http://gofile.me/4hSqO/7XKmWqUBB]  - Clean version
> I applied the Adobe DC's Optimize option (relevant in the attached file). As 
> a result, a 48mb PDF file was reduced to 19mb. I think this is due to 
> cleaning up duplicate objects in the PDF.
> Am I right? I would like to implement this process with PDFBox. How should I 
> approach it?



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