iText will never compress an XMP metadata stream; all other content streams are compressed by default. Compressing and decompressing existing files. iTextSharp is AGPL-licensed, so you must release source code of your solution or Pdf can reduce size of compressed and uncompressed PDFs to different. C# and itextsharp PDF compression When I take the file and open it in Acrobat X, I can get the compression down to just Existing Members.

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Reduce PDF file size

I will look into it more and see if I can tweak it down to a reasonable file size. Adding metadata iText 5. Basically you existinng iText to find and extract all images, perform your own reduction logic and then add the images back using iText. ChrisHaas True, but this can be dangerous.

I’ve been on this for 3 days now, and frankly have run out of ideas.

c# – Does iTextSharp Handle PDF Compression? – Stack Overflow

Do you need your password? Thanks, this thread also i raised Using “full compression” which will cause the cross-reference table to be compressed should have an effect on the file size for PDFs with many indirect objects.


See a similar thread, if that can help u http: Show message ; Process. In the past I’ve used Docotic. Because of their ignorance, they add the image as many times as there are pages. This algorithm is similar to the ZIP algorithm and you can set different levels of compression from 0 to 9; where choosing -1 will use whatever your programming language considers being the default. Top Rated Most Recent.

Possibly a super simple document might get larger with this enabled, not sure and don’t feel like testing.

Format “Original file size: This email is in use. This is a destructive change but it might be acceptable in your environment. Insults are not welcome. How to do this? This website intents to provide free and high quality tutorials, examples, exercises and solutions, questions and answers of programming and scripting languages: In iteztsharp, you can use the CompressionLevel property of the Exieting class to set the compression level of stream objects that are written to the FileStream.

There’s a very high level example of it here.

In reply to this post by TvT. Pdf enterprise library, and it worked great. The rest is actual image compression inside the PDF.


Dear Leonard Rosenthol, I didn’t try using Adobe Acrobat but i want to do through programmatically not manually why because that is not a fixed size it may vary and the files existijg be uploaded by users. In reply to this post by Carlos Arturo Bernal Carvajal. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject eixsting these policies.

Read the question carefully. Still some code which shows some of the stuff: Remove From My Forums.

This is the Pdf file after being compressed. RemoveUnusedObjects ; will also help you itextshxrp versions remove unused objects by default.

This email is in use. Knowing nothing about the PDFs in question it is hard to tell whether or not they can be compressed at all. In iText you got several options: PDF and compression iText 5.