CAT photo and signature resizer
Resize your photo and signature to the exact CAT size and KB from the latest official notice. Free, with no sign-up.
Upload
- Size
- 30 × 45 mm
- File size
- 20–80 KB
- Format
- JPG
- Recent colour photo
Not confirmed on the official site.CAT shows its sizes only inside the logged-in form; these come from coaching-site summaries, made at 150 DPI and at least 20 KB to be safe.Official source Rules change every year: check the latest notification before you submit. Already have a file? Check it
Use a recent, sharp photo taken facing the camera in good light.
Making files for several people? Choose all their pictures at once. Each one is cropped automatically.
CAT upload sizes
| Upload | Size | We make | File size |
|---|---|---|---|
| Photograph | 30 × 45 mm | 300 × 450 px | 20–80 KB |
| Signature | 80 × 35 mm | 480 × 210 px | 20–80 KB |
Not confirmed on the official site. Official source
All exams and forms
How to use it
- 1Pick your exam or form, then the upload you need: photo, signature, thumb or declaration.
- 2Add a photo of yourself, or a straight photo of your signature on white paper.
- 3Drag the box to frame it, then press Make JPG.
- 4Check the size and KB in the green checklist, then download the file and upload it to the form.
Frequently asked questions
What size should the photograph be for CAT?
30 × 45 mm. Save it as a JPG of 20–80 KB.
What size should the signature be for CAT?
80 × 35 mm. Save it as a JPG of 20–80 KB.
Are these CAT sizes up to date?
We couldn't confirm them on the official site, so treat them as a guide and check your notification before you submit.
Related tools
- Check Exam Photo & SignatureSee if your photo or signature meets an exam form's rules before you upload it.
- Photo & Signature JoinerPut your photo and signature together in one JPG for a form.
- Signature MakerDraw or type a signature, or clean up a photo of one.
- Passport Photo Print SheetPrint many passport photos on one 4 × 6 in, 5 × 7 in or A4 sheet, at true size.