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?
Scan to PDF
Get any file to the size you need. Privately.
1 Open this page and add the file. Scan to 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
Scan to PDF uses the camera on this device, captures stills, and builds a PDF here. It does not detect page corners with a model, and it does not upload the frames to a scanning cloud. You get a picture of the page, not a text layer. If you need search, that is OCR, which this version does not fake. Frames are not a product for a server.
Scan to 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: camera frames become a PDF in memory and are not posted to a scan account.
- 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 “Scan to PDF” upload my file?
Scan to PDF reads the file in this tab. There is no upload step and no account.
What will “Scan to PDF” actually change?
You get images in a PDF. Edges are not auto-cropped by a model in this beta, and there is no text layer.
When is “Scan to PDF” the wrong job?
A dark photo stays hard to read. Retake it rather than expecting a server to enhance it.
How do I check the result of “Scan to PDF”?
Read the PDF at the size you will send. If a corner is cut off, capture that page again.
Can I run “Scan to PDF” with Wi-Fi off?
Load this page, then turn Wi-Fi off and run Scan to PDF again. A finished result is the proof that the file was not sent anywhere.
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Last updated 2026-09-27.