Compress PDF
Make a PDF small enough to email. Photos, scans and graphics are resized and recompressed; text stays sharp. Nothing is uploaded.
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Shrink a PDF for email
- A photo-heavy deck over the 25 MB email limit.
- A scanned contract for an upload form with a size cap.
- A portfolio that loads slowly on a phone.
It shrinks pictures. A PDF that is mostly text is already small and will not get much smaller.
Your file never leaves your device
Compress PDF runs in your browser. The file is read, changed and saved on your own computer or phone; it is never uploaded to Wiro or anyone else, so a contract, an invoice or an ID is safe to use here. Free, with no sign-up, no watermark and no daily limit.
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Try it freeCommon questions
Are my files uploaded?
No. Every tool runs in your browser: the file is read, changed and saved on your own device, and nothing is sent to Wiro or anyone else. That is why a contract, an invoice or an ID is safe to use here.
Is it really free?
Yes, with no sign-up, no watermark and no daily limit. Your own device does the work, so there is no server cost to pass on.
Does it work on a phone?
Yes, in any modern browser. Very large files are slower on a phone, because the phone does the work; on a computer the same file is usually quick.
Can it open password-protected PDFs?
If you know the password, yes: Unlock PDF takes it off, in your browser, and every other tool can then work on the file. It does not guess, crack or bypass a password you do not have.