Free · Open source · No upload
Get any file to the exact size you need.
Compress, convert and sign PDFs and photos in your browser. Your files are never uploaded.
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How it works
Choose a file
Select or drop a PDF or photo into the workspace.
Set your target
Pick an exact size limit or strength goal.
Download
Get your file instantly without leaving your browser.
Questions
Are my files sent to any server?
Is Weesize really completely free?
How does exact-size compression work?
Does it work offline?
Unlock PDF
Get any file to the size you need. Privately.
1 Open this page and add the file. Unlock PDF starts in the browser you already have open.2 Run the tool. If this version cannot do the job honestly, it says so instead of inventing a result.3 Download the file that was built on this device. Closing the tab drops the bytes.
About this tool
Unlock PDF is for a password you already know. This version does not strip encryption, and it will never try passwords. Guessing is an attack, even when the file is yours and you have forgotten the word. Remove the password on this device with a tool that can, then continue. Uploading a locked file to a remover gives that service the file and often the password you type.
Unlock PDF stays on this device. The download is the copy you keep, and Weesize does not store a second one. Close the tab when you are finished and the bytes are gone.
- No upload: there is no password field sent to a server, because there is no guessing and no upload.
- Speed: the file does not travel to a server and back, so the wait is only the work itself.
- Quality: the original is kept when the new file would be worse or is not actually smaller.
FAQ
Does “Unlock PDF” upload my file?
Unlock PDF reads the file in this tab. There is no upload step and no account.
What will “Unlock PDF” actually change?
This version does not remove encryption. A locked file stays locked here.
When is “Unlock PDF” the wrong job?
If you do not know the password, no reputable tool should offer to find it.
How do I check the result of “Unlock PDF”?
There is no unlocked download from this screen. A file unlocked elsewhere should open without a prompt.
Can I run “Unlock PDF” with Wi-Fi off?
Load this page, then turn Wi-Fi off and run Unlock PDF again. A finished result is the proof that the file was not sent anywhere.
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Last updated 2026-09-27.