Optimized for Email requirements.
Free & unlimited "” all processing happens privately in your browser.
Or click the button below to browse files from your computer.
Need your file optimized specifically for Email? Signature Resizer is a free online tool that creates compliant passport and ID photos from JPG, JPEG, PNG, WebP, HEIC, and AVIF portraits. It runs entirely in your browser, so your photos are never sent to any server. The tool applies the correct dimensions, background colour, and DPI for the selected country or document type. The output is a print-ready JPG and PNG file that meets official specification requirements. Always verify requirements with the issuing authority before submission, as specifications can change.
Upload your portrait
Select a clear, front-facing JPG, JPEG, PNG, WebP, HEIC, and AVIF photo.
Select the document type
Choose the country and document standard from the preset list.
Position your face
Adjust the crop so your face is correctly centred and sized.
Download
Save the print-ready JPG and PNG file. Your file is now perfectly optimized for Email.
Input Formats
Output Formats
Passport applications
Create photos that meet national passport dimension and background requirements.
Visa applications
Prepare photos to the exact specifications of the destination country.
ID cards
Generate correct-size photos for national identity cards and driving licences.
Work permits
Produce compliant photos for employment documentation.
Student IDs
Create standardised photos for university and school identification.
Use a plain background
Start with a photo taken against a plain white or light wall for the best results.
Neutral expression
Most official documents require a neutral, mouth-closed expression.
Check official specs
Always verify current requirements with the issuing authority — specs do change.
Good lighting matters
Even lighting with no shadows on the face produces the most compliant results.
Everything you need to know about processing files with this tool.
This tool helps you produce correctly sized and formatted photos. Final acceptance is determined by the issuing authority.
Most countries require a plain white or off-white background. The tool can apply this automatically.
Yes. The output is a standard print-ready image file.
Presets are available for the most common passports and ID documents. Check the preset list for your country.
Common questions from people using this type of tool.
Signature Resizer on PXEL is a fast, free option that runs entirely in your browser. No software installation or account is required.
Yes. Signature Resizer runs directly in your web browser using the Canvas API and WebAssembly. Nothing needs to be installed.
Yes. The tool runs in mobile browsers on iOS and Android without any app download.
Yes. There are no hidden fees, no daily limits, and no account required. Every tool on PXEL is free to use.
Signature Resizer outputs files in JPG and PNG format. You can select the format in the tool options.
Processing is nearly instant for most files. Very large files (50 MB) may take a few seconds depending on your device.
Files never leave your browser
All processing uses the Canvas API and WebAssembly locally. Nothing is uploaded.
Instant processing
No server round-trips. Results are ready the moment processing finishes.
Works on all devices
Desktop, tablet, and mobile browsers are all supported. No app required.
Free forever, no limits
No account, no subscription, no daily caps. Every tool on PXEL is free.
No uploads
Your files are processed in memory. They are never stored, logged, or shared.
Last updated: 2025-06
Tool and content kept current to reflect best practices.