Free · Open source · No upload
Get any photo, signature or PDF to the exact size a form needs.
Free, private and fast. Pick a size, drop your file, done. Nothing is uploaded.
Never uploaded: processed on your device
Exact size: pick the limit you need
Free and open source: no sign-up, no limits
Popular sizes for forms
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Exact size & photo tools
Compress PDFCompress PDFs to exact KB target or reduction level without losing clarity.Compress imageMake photos, signatures and scans smaller to exact KB size.Signature resizerClean background to white, darken ink, and resize to exact KB and pixels.ID & passport photoCrop photos to exact passport dimensions in px, mm, or inches with plain background.Get it acceptedCheck a file against verified upload rules or apply a custom requirement.Repair PDFRebuild a damaged PDF structure so it can be opened again.
Organize PDF
Convert to PDF
Convert from PDF
Page stamps & numbers
Security & privacy
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?
Weesize reduces image quality and dimensions step by step until the file hits your target size. If the target is too small to keep the image readable, the tool tells you exactly what size is possible instead of giving you an unreadable file.
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.