Home / PDF Compressor

PDF Compressor

Reduce a PDF's file size by re-encoding each page at a quality level you control. Best for scanned documents and image-heavy PDFs.

This compresses by re-rendering each page as an image at your chosen quality. It works best on scanned or image-heavy PDFs. Text in the output PDF will no longer be selectable — for text-based PDFs, file size savings are usually smaller.
Drop a PDF here
PDF only · one file at a time · stays on your device
Compressing…
compressed.pdf is ready Download

A PDF that's too large to email or too slow to upload usually just needs its images re-encoded, not its content rewritten. This compressor shrinks file size while keeping your document readable, right on your device — useful for shrinking scanned documents, reducing PDF size for Gmail attachments, or getting under a file-upload limit. No file is uploaded anywhere, no account needed, and no watermark is added to the result.

How it works

  1. Add your PDFDrop in the file you want to shrink.
  2. Pick a quality levelLower quality means a smaller file. Start around 70% and adjust from there.
  3. Compress and downloadEach page is re-rendered and rebuilt into a new, smaller PDF.

Good to know

  • Best results on scanned pages, photos, and image-heavy PDFs
  • Output text is no longer selectable or searchable
  • Very large PDFs may take longer since every page is re-rendered

FAQ

Why isn't my text-based PDF getting much smaller?

Text-based PDFs are already compact. This tool's biggest savings come from image-heavy or scanned pages, since it re-encodes each page as a compressed image.

Will I lose text selection and searchability?

Yes — the output is image-based, so text can no longer be selected, searched, or copied. If you need to keep text editable, skip compression or keep the original alongside the compressed copy.

What quality setting should I use?

70% is a good starting point for most documents. Drop to 40–50% for maximum size reduction, or stay above 80% if the PDF contains detailed images.

Can I compress a password-protected PDF?

Not currently — password-protected or encrypted PDFs aren't supported. Remove the password first, then compress.

Does this work on Mac, Windows, or my phone?

Yes — it runs in any modern browser on Mac, Windows, Chromebook, iPhone, or Android. No app or software to install.