Compress PDF

Compress PDF files online — free & private

Reduce PDF size up to 90% with two modes: lossless optimize keeps text selectable; maximum re-render squeezes scans and photos. See the savings before you download.

Open the tool — it's free Files never leave your device
No account needed No watermarks 100% in your browser

How it works

Three steps, under a minute, completely private.

1

Drop your PDF

Choose the file you want to shrink.

2

Pick a mode

Safe (lossless) or Maximum (re-render pages).

3

Compare & download

See size before/after and download the compressed file.

Why PDFLift compress PDF is better

The tools are free, unlimited, and your documents never touch a server.

Lossless mode

Rebuilds file structure; text stays selectable.

Maximum mode

Re-renders pages as optimized images — huge wins on scans.

Show the savings

Compare sizes before downloading, with adjustable quality.

Frequently asked questions

How much can I compress a PDF?

Depends on the content: scans and photo-heavy PDFs often shrink 60-90% in Maximum mode; already-optimized files gain less.

Does compression ruin quality?

Safe mode is lossless. Maximum mode lets you choose quality vs. size with a slider.

Can I send it by email after?

Yes — most email services cap attachments at 10-25 MB; compress first and your file fits.

Try Compress PDF now — free

Fast, private, and no sign-up required.

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