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.
Never uploaded: processed on your device
Exact size: pick the limit you need
Free and open source: no sign-up, no limits
Popular tools
Popular tools
On deviceCompress PDFMake PDFs smaller without losing quality.Merge PDFCombine PDFs in any order.Split PDFExtract pages or split into files.Organize pagesReorder, rotate, delete and insert pages.Images to PDFTurn images into a PDF.BetaScan to PDFPhotograph pages and save them as a PDF.BetaPDF to WordSave the text of a PDF as a Word document.LimitedSign & fillAdd a signature, a date, or a check.
All tools
Optimize
On deviceCompress PDFMake PDFs smaller without losing quality.On deviceCompress imagesShrink photos and screenshots.On deviceRepair PDFRebuild a PDF so it can be opened again.On deviceID photoCrop a photo to exact pixel size. The face is not retouched.On deviceLite modeA quieter, smaller path for a slow connection.
Organize
Convert to PDF
Convert from PDF
Edit
Security
LimitedProtect PDFAdd a password.LimitedUnlock PDFRemove a password you already know.LimitedRedact PDFPermanently remove text from a PDF.On deviceSafe to shareLook for hidden text, scripts, and location data before you send a file.On deviceSignature checkReport signature coverage and edit signals. Not a verdict.
Smart
LimitedMake searchableAdd a text layer so you can search a scan.Compare PDFsSee which words changed between two PDFs.Needs Chrome AISummarize PDFSummarize a PDF with the browser’s on-device model.Needs Chrome AITranslate PDFTranslate a PDF with the browser’s on-device model.Get it acceptedCheck a file against a verified upload rule.Chat with PDFAsk about this document. Answers cite a page or say they are not in the file.
Workflows
How it works
1
Choose a file
Select or drop a PDF or photo into the workspace.
2
Set your target
Pick an exact size limit or strength goal.
3
Download
Get your file instantly without leaving your browser.
Questions
Are my files sent to any server?
No. Weesize processes documents entirely inside your browser using JavaScript and WebAssembly. Your files never leave your device.
Is Weesize really completely free?
Yes. Weesize is free, open source, and has zero limits, subscriptions, watermarks, or accounts required.
How does exact-size compression work?
Our client-side engine iteratively optimizes image streams and metadata targets until the file reaches your requested KB size without degrading legibility.
Does it work offline?
Yes. Once the page is loaded, you can turn off Wi-Fi or disconnect from the internet and continue compressing and editing files.
All PDF tools
Get any file to the size you need. Privately.