How to compress a PDF
- 1Choose one or more PDF files.
- 2Pick a level: Less (best quality), Recommended, or Extreme (smallest file).
- 3Optionally turn images grayscale or remove hidden metadata to save a little more.
- 4Press Compress PDF and download; the result shows how much smaller each file got.
Features
- Three compression levels to trade size against image quality.
- Text and vector graphics are kept, so compressed PDFs stay searchable.
- Optional grayscale images and metadata removal.
- Compress several PDFs at once.
When to use Compress PDF
- Get a scan under an email attachment limit.
- Meet upload limits on job, visa, university or tax portals.
- Save storage space for archived statements and reports.
Good to know
- Savings come mostly from images. A PDF that is mostly text is already small and may shrink only a little.
- If the file must fit a strict limit and still doesn't, Split by size can break it into parts.
- Your files are processed in your browser and never uploaded to a server.
- Free to use with no sign-up, no limit on tasks and no watermark on your files.
Frequently asked questions
How much smaller will my PDF get?
It depends on what's inside. Scans and photo-heavy PDFs often shrink by 50–90%. Text-only PDFs are usually already compact.
Does compressing a PDF lower the quality?
Only images are affected. Recommended keeps photos clear on screen and in print; Extreme makes them visibly softer in exchange for the smallest file.