iText will never compress an XMP metadata stream; all other content streams are compressed by default. You’ve already used the setCompressionLevel(). hey everyone, I have pdfs, and it is too big, I would like to optimize(compress) them using iTextSharp. anybody have any idea or samples?. I have some very large PDF files that are being created using C# and ItextSharp. One of the biggest files gets very close to the 10GB limit on.

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Understand that English isn’t everyone’s first language so be lenient of bad spelling and grammar. Believe it or not, it was in front of me the whole time, GhostScript to the rescue! Hi RamonCrgg, This forum is about visual studio IDE, as your issue is related to your visual basic code, it would be related to vb, I help you move this case to visual basic forum for dedicated support. Post as a guest Name.

You want to reduce the quality of the contained images so that the final size will be much smaller? PdfStamper is a helper class that ultimately uses another class called PdfStamperImp to do most of the work. This website intents to provide free and high quality tutorials, examples, exercises and solutions, questions and answers of programming and scripting languages: Basically you use iText to find and extract all images, perform your own reduction logic and then add the images back using iText.


Note that developers post answers on StackOverflow on a voluntary basis; there’s no itwxtsharp response-time and responding to this free forum has low priority compared to delivering commercial support.

PDF and compression (iText 5)

BrunoLowagie, I absolutely agree that changing an image in itextsjarp way could destroy the original intention of the image and make it not usable. That’s exactly where my brain led me after reading your comment – I went and got nQuant from nuGet and am trying to see what happens when I compress the PNG files prior to inserting them into the PDF.

Writer you are actually getting back this implementation class. Pdf enterprise library, and it worked great. Carlos Arturo Bernal Carvajal.

Reduce PDF file size

Submit a new link. I’m debating about chopping it into 5K page chunks, but was actually hoping I was just missing something, little frazzled after 3 days of struggling on this!

Thanks for helping make community forums a great place. But the problem i m facing is that the pdf which i m getting as an output is double in size as to tif. Thanks in advance for any advice! C and itextsharp PDF compression. No job postings For Hire and Hiring Rule 2: What I have tried: Format “Original file size: Leonard, didn’t know at first what you meant with “refrying” but found this article of yours which explains it quite well: Some of the pdf’s contains images and text and some of them are contains plain text some of them both.

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.

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I’m with the other two comments about compressing the images before hand. Thanks Bruno Lowagie, this is a very concise response.

iText – Reduce PDF file size

This email is in use. PDF files can commonly be compressed much.

In reply to this post by Carlos Arturo Bernal Carvajal. Depending on the version of iTextSharp you’re using reader.

In reply to this post by TvT. This is some stub code that I copied, it shows the settings I am using for the beginning of the PDF creation process. What information in those PDFs is superfluous in your context and can be thrown away? Search everywhere only in this topic. Monday, September 14, 8: I’ve been itectsharp this for 3 days now, and frankly have run out of ideas.

compress pdf file with itextsharp

Chances are they have and don’t get it. How to set custom page size of pdf comprexs itextsharp. There’s actually no requirement that what we think of as “compression” actually occurs but in reality I think it would always happen.

Or you want to enforce access permissions to the people who download the PDF; for instance, they can view it, but they are not allowed to print it. A minimal “Hello World” file could increase in file size when you use “full compression”.