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Or choose a target size
You're in good company:
Zamzar has converted and compressed over 510 million files since 2006
Compress to different file sizes
You can use Zamzar to process a wide range of different files - just click on a format to get started:
Why compress PDFs to 10kb
Large PDF files can cause a surprisingly wide range of issues in everyday tasks. Emailing a scanned document, submitting an assignment through an online portal, or uploading a form to a government website can all hit a wall if your PDF is too big. Many platforms have strict file size limits, and even when they don't, oversized files can be slow to upload and download, which adds unnecessary friction to simple tasks. Compressing a PDF down to around 10KB makes it lightweight enough to fit almost anywhere, whether that's an email attachment, a web form, or cloud storage.
Zamzar's online PDF compressor makes this process quick and straightforward. You upload your PDF, Zamzar compresses it, and you download the smaller file in just a few steps. This can be particularly handy if you're working with scanned documents, which tend to be much larger than they need to be. For example, if you've scanned a single-page form or a short letter, compressing it to 10KB means you can attach it to an email without a second thought. It's also useful for students uploading coursework, or anyone needing to share documents through a platform with tight size restrictions.
Privacy
We realise that privacy matters, and so we have created a detailed privacy policy that outlines what we do with your files and personal information. That policy can be read here.
Quick
Converting a file is as easy as three clicks of a button - one click to upload your file, another to select the new file format and the final one to make the magic happen!
Very Experienced
Having launched in 2006, we’ve spent a long time refining our process so that converting files with us is seamless, quick and completely pain-free.
High Quality
A converted file doesn't mean a change of formatting or style. Instead, the only thing you should notice is a new file extension.