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Compress PDF

Shrink scanned or image-heavy PDFs toward a target size, right in your browser.

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Drop a PDF here or click to browse

Compressed on your device — nothing is uploaded.

Note: to hit small sizes, pages are rebuilt as compressed images, so text may no longer be selectable. Best for scans and image-heavy PDFs.

🗜️Hit the upload limit, not your quality

Application portals love 100 KB and 200 KB limits; scans love being 4 MB. This compressor rebuilds your PDF toward an exact target size — trying the sharpest settings that fit — entirely on your device. If the file is already text-based and compact, it says so honestly instead of bloating it.

⚙️How browser PDF compression works

  • Pages are re-rendered as optimised JPEG images, binary-searching quality (and then resolution) until the target fits.
  • Best for scans and image-heavy files — a 3 MB scanned form typically lands under 200 KB looking clean.
  • Pure-text PDFs are already tiny and highly compressed; rebuilding them as images would grow them, so your original is returned untouched.
  • Compression keeps working even if you switch tabs while a big file processes.
A 2.8 MB scanned marksheet with a 200 KB portal limit → compressed to ~190 KB in seconds, still perfectly readable.

💡Passing strict portals

  • Aim slightly under the limit (180 KB for a 200 KB cap) — some portals measure differently.
  • Text may not be selectable afterwards, since pages become images — fine for uploads, not for editing.
  • Multi-step trick: crop away blank margins first (scan apps) — fewer pixels compress further.

💡 Frequently Asked Questions

How do I compress a PDF to under 200 KB?+

Choose your target size (like 100, 150, or 200 KB), then upload your PDF. The tool automatically lowers image quality until the file fits under your chosen size, then lets you download it.

Why might the text not be selectable afterwards?+

To reach very small sizes, each page is rebuilt as a compressed image. This works great for scanned documents and image-heavy PDFs, but it means text becomes part of the image rather than selectable text.

Are my files uploaded anywhere?+

No — compression happens entirely in your browser on your device. Your PDF is never uploaded, so it stays completely private.

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