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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In the resulting PDF file, content streams will be compressed, but so will some other objects, such as the cross-reference table. Top Rated Most Recent. Use this for debugging purposes only! Click HERE to participate the survey. You want to reduce the quality of the contained images so that the final size will be much smaller?

However you may be able to compresss System.

The compression level 0, default compression, and compression level 9 can be specified by using constant values defined in the PdfStream class: UnsedObjects and form fields: JonyGreen I’m not a developer, i always use this free online pdf to image converter http: If anybody have any suggestions or ideas, please let me know.

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Essentially, I have a list of folders that contain many PDF files ranging from 1MB to 10MB in size, and the quantity of these folders keeps growing every day, so to save disk space I would like to be able to read in a PDF file once it has been processed, compress it, then save it to the designated exusting location. You need a human being to make that decision. It still works but it is very close to the upper limit.

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A minimal “Hello World” file could increase in file size when you use “full compression”. Nov 12, Understand that English isn’t everyone’s first language so be lenient of bad spelling and grammar.

C# and itextsharp PDF compression

Purchasing a library wouldn’t be a problem. SetMargins 0, 0, 0, 0 ; iTextSharp. How to optimize this code. Treat my content as plain text, not as HTML. This is only possible since PDF version 1. Format “Original file size: 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.

I don’t understand your post. Anuja Pawar Indore 8-Sep 5: 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. PDF is mostly images then probably not much compression will occur since those will probably already be compressed images unless they are.

Stack Overflow works best with JavaScript enabled. Close ; Treat my content as plain text, not as HTML. Encrypting a PDF document iText 5. Thanks, this thread also i raised A lot of people are against trying to do this yourself because any mishap and you corrupt the entire PDF file. Monday, September 14, 8: How to optimize compress pdf using c and iTextSharp.

PDF files can commonly be compressed much.

You can use the GetPageContent method to get the content stream of a page, and the SetPageContent method to put it back. I will look into it more and see if I can tweak it down to a reasonable file size. If a question is poorly phrased then comprress ask for clarification, ignore it, or edit the question and fix the problem.


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.

I tried TVT’s Sample code but the wxisting does not compressing I mean the file size is same before uploading and after uploading. Many questions posted to this list can and will be answered with a reference to the iText book: Provide an answer or move on to the next question. In reply to this post by TvT. In which version of itextsharp exist below properties.

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

Compression to compress or zip one existiing those to a smaller size. On Tue, Jul 8, at 9: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policycompdess our Terms of Service. Free Support If you have a technical question, and want an answer for free, you can post questions to: On Tue, Jul 8, at 5: Monkeyboy Wednesday, September 16, 3: You need to be certain that there are unused things in your pdf. Compression of stream objects mainly images could help you to decrease overall PDF size.