Compress PDF

About this tool

Email attachment limits and slow uploads usually come down to one thing: PDF size. This tool automatically detects whether your PDF is mostly text (contracts, reports) or mostly images (scanned documents) and compresses it the right way for each case — rather than blindly rasterizing every page, which can make text-heavy PDFs bigger, not smaller.

Frequently asked questions

Why do some compressors make my PDF bigger?

Most online compressors rasterize every page into a JPEG regardless of content. That works for scanned/image-heavy PDFs but bloats text-heavy ones. This tool checks which type your PDF is first and compresses accordingly.

Will I lose text selectability?

If your PDF is detected as text-heavy, it's compressed losslessly and stays fully selectable/searchable. Only image-heavy PDFs get rasterized.

What if compression doesn't help my file?

If the result would be larger than your original, the tool automatically returns your original file unchanged instead.

Is my PDF uploaded anywhere?

No — compression runs entirely in your browser.