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 file. iText will never compress an XMP metadata stream; all other content streams are compressed by default. You’ve already used the setCompressionLevel(). I want to compress a PDF file size from MB’s to KB’s (if the file size is 5 MB then it should be compressed in to KB’s like KB or KB).

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However, we don’t guarantee all things of the web are accurate. Monday, September 14, 5: Tuesday, July 8, at Thanks, Jak – I looked into the templating, but this file is really a ton of scanned images put into a clmpression PDF, so the template doesn’t really help me out that much.

They contain lots of images and text all of which is exported as one single image on the page within the PDF. Because of their ignorance, they add the image as many times as there are pages. Post as a guest Name. Use this for debugging purposes only!

Reduce image

In the PDF, I scale the images to the page width, and when printed, the copies are mostly indistinguishable from the original — these are legal documents which also include many pages of images. No hostility towards users for any reason Rule 6: This is a destructive change but it might be acceptable in your environment.

There is a great answer I read on stackoverflow from Chris Haas: Remove From My Forums. And I sent a couple more different.


C# PDF Compression

And unfortunately we don’t have control of the PDF generator where these files are being created, so there may very well be redundancy within them. I’ve been on this for 3 days now, and frankly have run out of ideas. If it’s a ton of images, could you compress those before you create the actual pdf? Going lossy would make them much smaller still, with itextshaarp many cases neglible quality loss. Dear Leonard Ccompression, 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 was working with compredsion earlier this year, and the images turned out to be the major culprit. The difference is how the objects table is laid out and you can clean it up, that will only do so much though. Treat my content as plain text, not as HTML. 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.

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PDF and compression (iText 5)

But then you would have to decompress or unzip it to display it in a. Purchasing a library wouldn’t be a problem. 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.


Have you tried the suggestion from Chris’ answer? Not for VB6 questions. Ok Suresh, that is not possible. Thanks for helping make community forums a great place. Just because you tell iTextSharp to use compression when saving the PDF, it doesn’t mean it will reduce it very much if at all. Video Tutorials C Fundamentals: You will use the SetFullCompression method of the PdfWriter class to use the full compression option. Let’s compresslon to help developers, not make them feel stupid.

Use of this site constitutes acceptance of our User Agreement and Privacy Policy. The result is a document whose PDF syntax can be seen in the content streams of each page when opened in a text editor. Log in or sign up in seconds. I’m itxetsharp about chopping it into 5K page chunks, but was actually hoping I was vompression missing something, little frazzled comprression 3 days of struggling on this! If iTextSharp does not support compression, does anyone have suggestions for other.

When answering a question please: Thanks in advance for any advice! Again, thank you everyone!!! I’ve been on this for 3 days now, and frankly have run out of ideas.

I don’t understand your post. On Tue, Jul 8, at 5: You need to be more specific here Print Share Twitter Facebook Email.

Depending on the version of iTextSharp you’re using reader.