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Kordu Tools

Compress PDF

Reduce PDF file size by compressing images and removing metadata in your browser.

Click to upload or drag and drop

PDF up to 100MB
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How to use

  1. 1

    Upload your PDF

    Click the upload area or drag and drop a PDF file.

  2. 2

    Choose compression level

    Select Low, Medium, or High compression based on your needs.

  3. 3

    Compress and download

    Click Compress PDF and download the smaller file.

Frequently asked questions

Is my file uploaded to a server?
No. Compression runs entirely in your browser using PDF.js and jsPDF. Your files never leave your device.
How much smaller will my PDF get?
Results depend on the original content. Image-heavy PDFs can shrink 50–80%. Text-only PDFs may see smaller reductions since the text is re-rasterised.
Does compression reduce quality?
Yes. Pages are re-rendered as JPEG images at the chosen quality level. Low compression preserves most detail, while High compression produces noticeably smaller but lower-quality output.
Will text remain selectable after compression?
No. The compressed PDF contains page images, so text is no longer selectable or searchable. Use Low compression if you need to preserve readability for print.
Is there a page limit?
There is no hard limit. Large PDFs process fine, though speed depends on your device. Keep files under 50 pages for best performance.
What compression level should I use?
Use Low for documents you need to print clearly. Medium is ideal for email attachments and web sharing. High works best when file size is the top priority.

Shrink PDF files by re-encoding pages at optimised quality levels.

Choose between light, balanced, and maximum compression to control the

trade-off between file size and visual clarity. All processing happens

in your browser — your documents are never uploaded.

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