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Compress PDF

Reduce the file size of a PDF. Images are re-compressed; text and vector graphics stay sharp. Free, no sign-up — files are processed in your browser and never uploaded.

Drop your file here

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Compress PDF Online Free

Shrink large PDFs for email, WhatsApp and online application forms. Images are re-compressed while text and vector graphics stay sharp. Files are processed in your browser and never uploaded.

How to use Compress PDF

  1. 1Open pdfhai Compress PDF and choose your file (or drag and drop it).
  2. 2Adjust the options if you need to — everything runs instantly in your browser.
  3. 3Download the result. No sign-up, no watermark, and your file is never uploaded.

Frequently asked questions

How do I compress a PDF to under 100KB?

Choose Extreme Compression. Scanned or image-heavy PDFs shrink the most; text-only PDFs are usually small already.

Will the text stay readable?

Yes. Text and vector graphics are not changed — only images are re-compressed.

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