How to resize a photo and signature for an online form: choose the preset for your exam (or Custom), select your image, press Resize & compress and download. The file name shows the final pixels and KB, so you can check them against the notice.
How to photo & Signature Resizer for Online Forms
- Choose a preset (an exam, passport photo or KB limit) or Custom.
- Select your photo or signature (JPG, PNG or iPhone HEIC).
- Choose how to fit it: fill the frame or show the whole picture.
- Press Resize & compress and download. Tick the print-sheet option if you want 8 passport photos on a 4×6 sheet.
Common sizes at a glance
| Upload | Size | File size |
|---|---|---|
| Passport size photo | 3.5 × 4.5 cm (413 × 531 px at 300 dpi) | Depends on the form |
| Typical exam photo (IBPS style) | 200 × 230 px | 20–50 KB |
| Typical exam signature | 140 × 60 px | 10–20 KB |
| SSC signature | about 6.0 × 2.0 cm | 10–20 KB |
Exam-specific details: SSC · NEET · IBPS · UPSC · all portals.
How to scan a clean signature
- Sign in black ink on plain white, unlined paper, in your normal running hand rather than capitals.
- Photograph it in daylight without shadows, holding the phone parallel to the paper.
- Choose "Show whole picture" so no part of the signature gets cut off.
Why photos get rejected
- The file is too large or too small. Many portals set a minimum KB as well as a maximum.
- The pixel size is wrong or the face looks stretched.
- The background is dark or patterned, or there are shadows, caps or sunglasses.
- The photo is old. Many notices want a recent one, and some want your name and the date printed below it.
Passport photos at home
Choose Passport size photo, stand against a plain white wall in daylight and tick print sheet. You get a JPG for online forms and a 4 × 6 inch sheet with 8 photos that any photo shop can print.
Why your file stays private
Photo & Signature Resizer runs entirely inside your browser. Your file is read from your device, processed in memory and saved back to your device. It is never uploaded to GreenPDFs or anyone else, so you can use it with Aadhaar, marksheets, bank statements and other personal documents. How in-browser processing works.
Frequently asked questions
How do I compress a signature to 20KB?
Choose a signature preset (10–20 KB) or "Any image, 20 KB or less". You can also use Compress Image to 20KB.
What is the difference between pixels and cm?
Pixels are the image's dimensions. Centimetres only mean something together with the DPI: 3.5 cm at 300 dpi is 413 pixels.
Why does my portal reject a file that is too small?
Some portals set a minimum KB. The GreenPDFs presets keep the file between the minimum and the maximum.
Can I make several photos at once?
Yes. Add several images and the same preset is applied to each.
Are my photos uploaded?
No. Resizing and compression happen inside your browser, so your photo and signature stay on your device.