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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Optimize(compress)PDF using C# and iTextSharp | The Forums

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 should be uploaded by users. As a workaround, you can use the getPageContent method to get the content stream of a page, and the setPageContent method to put it back. Adding metadata iText 5. SetMargins 0, 0, 0, 0 ; iTextSharp.

Additionally, the cross-reference table can cojpress compressed and stored in a stream. With that said there are some 3rd party tools out there that will do it for you, but I don’t know of any free ones. Add your solution here.

Many questions posted to this list can and will be answered with a reference to the iText book: I haven’t used ITextSharp compression but I doubt that. Also, just to throw this out there because I deal with this at my day job, there’s a third type of “compression” that iText does not directly handle, and that’s lossy compression of images which will often do the most dramatic reduction of file size if you are willing to sacrifice quality. It has a the ability to optimize it for you and get great compression ratios.


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

In iText you got several options: You can specify one compression existin from the table below. PDF files can commonly be compressed much. Post as a guest Name.

The rest is actual image compression inside the PDF. How to optimize compress pdf using c and iTextSharp. Free Itedtsharp If you have a technical question, and want an answer for free, you can post questions to: Some of the pdf’s contains images and text and some of them are contains plain text some of them both.

C# and itextsharp PDF compression – CodeProject

By doing this, iTextSharp thinks the stream has changed, and it will use the compression level that was defined for writer object of the PdfStamper. Akshaya Dash 8-Sep 6: In which version of itextsharp exist below properties.

This website intents to provide free and high quality tutorials, examples, exercises and solutions, questions and answers of programming and scripting languages: If iTextSharp does not support compression, does anyone have suggestions for other.

Let’s work to help developers, comprses make them feel stupid. If you let a machine decide whether or not to reduce the resolution, you’ll never be certain if the text will still be legible after “compression”.

PDF and compression (iText 5)

Akshaya Dash 8-Sep 5: If anybody have any suggestions or ideas, please let me know. Chances are they have and don’t get it. Treat my content as plain text, not as HTML. ChrisHaas True, but this can be exisging. PDF of kb on my desktop to a Zip folder and the Zip folder is kb in size so not much reduction occured. Monday, September 14, 8: Tuesday, July 8, at Use this for debugging purposes only!


I don’t understand your post. The CompressionLevel is actually what you normally think of as compression, a number from 0 to 9 or -1 to mean default which currently equals six I think. Pdf enterprise library, and it worked great. There is a great answer I read on stackoverflow from Chris Haas: PDFs created from a scanner etc. Sign up or log in Sign up using Google. So these two calls actually do the same thing.

Reduce PDF file size. I looked at many of the free ones, such as PDFSharp, which is very good in my opinion at making PDFs, but cannot render or compress them.

By clicking “Post Your Answer”, ihextsharp acknowledge that you have read our updated terms of serviceprivacy policy and existinf policyand that your continued use of the website is subject to these policies. This email is in use. There’s actually a third parameter that you can pass to SetPageContent to set your specific compression level if you want. Understand that English isn’t everyone’s first language so be lenient of bad spelling and grammar.