Online application portals reject uploads for three reasons: the pixel size is wrong, the file is outside the KB range, or the file type is wrong. Each form states its own numbers in its notification. Use those, not a size you remember from another exam.
This checklist covers every file a typical Indian exam or job form asks for, and the free tool for each. All of them run in your browser, so your photo, signature and documents are never uploaded to us.
First, read the form's rules
Write these down for each file before you start:
| Rule | Example of how forms state it |
|---|---|
| Dimensions | "200 x 230 pixels" or "3.5 x 4.5 cm" |
| DPI | "200 DPI" (only if the form mentions it) |
| File size | "20 KB to 50 KB" (a minimum and a maximum) |
| File type | "JPG/JPEG only" |
Two details trip people up:
- A minimum KB matters as much as the maximum. A file under the minimum is rejected too.
- KB can mean 1,000 or 1,024 bytes. A file that is "50 KB" by one count can be just over by the other. Stay a little inside the limit.
1. Photo: exact pixels, DPI and KB
Use the Photo Resizer in KB, Pixel and DPI:
- Set the size in pixels, cm, mm or inches, whichever unit the form uses.
- Choose the DPI (72 to 600, or any custom value). It is written into the JPG or PNG file, where upload checks read it.
- Enter the minimum and maximum KB. The tool checks the result against both 1 KB = 1,000 bytes and 1 KB = 1,024 bytes.
- Choose JPG if the form says JPG, then resize.
The result shows the final pixels, print size and file size before you download. The tool also removes camera details and location from the photo.
cm to pixels: pixels depend on DPI. A 3.5 x 4.5 cm photo is 413 x 531 px at 300 DPI, or 276 x 354 px at 200 DPI. Switch the size to cm, pick the DPI, and the tool does the maths.
Still over the limit? At very large pixel sizes, even the lowest JPG quality can be too big. Use fewer pixels, or the same cm size at a lower DPI.
If the form only gives a KB limit, the Compress Image to 20KB preset is quicker.
2. Signature: small file, white background
Sign in black or blue ink on plain white paper and photograph it in good light. Then:
- Signature Resizer: whitens the background so the signature fits in 10-20 KB.
- No paper signature? The Signature Maker lets you draw or type one and save an exam-size JPG.
3. Photo and signature in one image
Some forms want the photo and the signature together as one JPG. The Photo and Signature Joiner puts the photo on top and the signature in a box below it, at a width of 300, 400 or 600 px, kept under the KB limit you set (50 KB by default).
4. Left thumb impression
Ink a print on white paper, photograph it, and use the Thumb Impression Maker. It removes the paper and shadows, keeps the real ridges, and sizes the JPG. It has an IBPS preset (240 x 240 px, 200 DPI, 20-50 KB) or takes any custom size. See the step-by-step thumb impression guide.
5. Documents as PDF
Certificates, mark sheets and ID proofs usually go up as a PDF under a size limit:
- Compress PDF to 100KB or Compress PDF to 200KB for the common limits.
- Scans saved as photos? Convert them with JPG to PDF, and join several pages into one file with Merge PDF.
Printed photos too?
For a printed copy, the Passport Size Photo Maker puts 8 passport photos on a 4x6 sheet at 300 DPI. See how to print 8 passport photos on a 4x6 sheet.
Final check before you upload
- Each file matches the form's pixels (and DPI if stated)
- Each file is inside the KB range, not just under the maximum
- File type is what the form asks for (usually JPG for images, PDF for documents)
- Photo background and recency follow the form's rules