Image tools / Passport & ID Tools
Signature Resizer
Shrink a signature and optionally flatten it to black ink on white.
Signature Resizer is its own job in the catalog (passport): Shrink a signature and optionally flatten it to black ink on white. It is not a copy of the resizer or converter with a new title — the operation is “ink”.
Controls on this page: Max width (px), Ink cutoff. Output defaults to png.
Processed in your browser. Files are not uploaded.
Supported: JPG, JPEG, PNG, WEBP, GIF, BMP, HEIC, AVIF. Max 25 MB, 30 files.
Related tools
Resize Photo for Job Application
Fit a common 200 KB / ~600 px application photo.
Passport Photo Resizer
Crop to 35×45 mm at 300 DPI (413×531 px). Confirm your country’s rules before printing.
ID Photo Maker
Square 2×2 inch ID photo at 300 DPI (600×600).
Resize Photo for Government Form
35×45 mm style photo aimed at ~50–100 KB. Always read the form’s own limits.
Signature Resizer runs in this browser with Canvas. The file is not uploaded to imagecropx. Close the tab and the copy in memory is gone.
What this is not
There is no account and no file locker. If a format cannot be written, the tool says so.
How to use Signature Resizer
- Choose a file for Signature Resizer. It stays on this device.
- Set the controls for this tool (Max width (px), Ink cutoff).
- Process, then download. You can add more than one file if this signature resizer lists a batch cap.
Questions about this tool
Does Signature Resizer upload my file?
No. Processing is in this browser.
Can I use this on a phone?
Yes, with the same file-size cap (about 25 MB). A large photo is slower on a phone CPU than on a laptop.
Does Signature Resizer upload the file?
No. This tool runs in the tab. See Privacy for decoder notes (HEIC, PDF.js worker).
What is the file size cap?
About 25 MB per file. Very large pixel counts are rejected so the tab stays responsive.