CornerTools

Photo and Signature Resizer

Resize a photo and signature to an exam form's size in pixels and KB, without uploading them.

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Processed in this browser · JPG, PNG, WebP, GIF, BMP, AVIF or HEIC · one at a time

Document

Photo

200 × 230 px · JPG · 20–50 KB

Makes the photo, signature, thumb impression and handwritten declaration an exam or PAN card form asks for, at the pixel size and file size in its official notice. Choose the form, add a photo or a phone picture of your signature, and download a JPG the portal accepts. Images are processed in your browser and never uploaded.

How to use it

Choose the Exam or form, then the Document. Each document keeps its own image while the page is open, so you can add the photo, switch to the signature and add that, and come back. The options say the document's size in pixels, its file size in KB and bytes, and its source.

For a photo, Find face places the crop on your face. For UPSC, NEET, JEE and CUET, whose rules ask the face to cover three quarters or 80% of the photo, the head (crown to chin) fills 90% of the height, as in the photos UPSC shows as accepted; for IBPS, CTET and PAN, which set no share, it fills 60%. Both are this tool's choice, not a rule. The face-finding model downloads once from this site, about 7 MB compressed (16 MB once expanded), and runs in your browser. Drag the crop to adjust it.

For a signature, thumb impression or declaration, the crop goes to the ink, with a margin of 8% of its longer side, and Clean up paper makes grey or shadowed paper white and the ink dark, keeping its colour. The ink is fitted inside the document's size on white, so nothing is cut off. Sign in black ink on plain white paper and photograph it in good light.

Every file is saved as JPG at the highest quality, up to 92, that stays under the maximum file size, and above 92 only to reach a minimum. A document with a set size keeps it, and only its quality drops to fit. Where a notice gives only a file size, the pixel size is this tool's choice, and the options say so. Custom takes any width, height and KB range. A document with no size, such as NEET's finger and thumb impressions or Custom with no width and height, keeps the crop's own size; where quality 50 would still pass the maximum, it is made smaller instead.

Examples

An IBPS signature: 140 × 60 px, 10 to 20 KB

The file is kept between 10,240 and 20,000 bytes, within 10 to 20 KB whether the portal counts 1,000 or 1,024 bytes to a KB. A signature on white paper is mostly blank, so at 140 × 60 px it usually stays under 10,240 bytes even at the best quality. IBPS calls 140 × 60 px its preferred size, so the signature is enlarged, keeping its shape, to the smallest size that reaches the minimum (up to 1,000 px), and the result says so. No filler bytes are added.

A UPSC signature, named as UPSC requires

UPSC asks for a signature between 350 and 500 pixels, 20 to 100 KB, in a file named signature. The tool saves 450 × 450 px, between 20,480 and 100,000 bytes, as signature.jpg; it grows no larger than 500 px, the top of UPSC's range. The Civil Services notice asks you to sign three times, one below the other, which fills a square well.

Sizes by exam and form

Each document's size, from the exam's official notice; sizes marked † are this tool's choice where the notice gives only the file size
Exam or formDocumentPixelsFile sizeKept between (bytes)
IBPS Clerk, PO and RRB, 2026Photo200 × 23020⁠–⁠50 KB20,480⁠–⁠50,000
IBPS Clerk, PO and RRB, 2026Signature140 × 6010⁠–⁠20 KB10,240⁠–⁠20,000
IBPS Clerk, PO and RRB, 2026Left thumb impression240 × 24020⁠–⁠50 KB20,480⁠–⁠50,000
IBPS Clerk, PO and RRB, 2026Handwritten declaration800 × 40050⁠–⁠100 KB51,200⁠–⁠100,000
SSC CGL and CHSL, 2026Signature472 × 157 or 315 × 15710⁠–⁠20 KB10,240⁠–⁠20,000
NEET (UG), 2026Photo413 × 531 †10⁠–⁠200 KB10,240⁠–⁠200,000
NEET (UG), 2026Signature472 × 157 †10⁠–⁠100 KB10,240⁠–⁠100,000
NEET (UG), 2026Fingers and thumbsAny50⁠–⁠200 KB51,200⁠–⁠200,000
JEE (Main), 2026Photo413 × 531 †10⁠–⁠200 KB10,240⁠–⁠200,000
JEE (Main), 2026Signature472 × 157 †10⁠–⁠100 KB10,240⁠–⁠100,000
CUET (UG), 2026Photo413 × 531 †10⁠–⁠200 KB10,240⁠–⁠200,000
CUET (UG), 2026Signature472 × 157 †10⁠–⁠50 KB10,240⁠–⁠50,000
CTET, September 2026Photo413 × 53110⁠–⁠100 KB10,240⁠–⁠100,000
CTET, September 2026Signature276 × 1183⁠–⁠30 KB3,072⁠–⁠30,000
PAN card (Protean)Photo197 × 276up to 20 KBup to 20,000
PAN card (Protean)Signature354 × 157up to 10 KBup to 10,000
UPSC (all exams)Photo413 × 531 †20⁠–⁠200 KB20,480⁠–⁠200,000
UPSC (all exams)Signature450 × 450 †20⁠–⁠100 KB20,480⁠–⁠100,000

Where the sizes come from

Each size is from the exam's own notice for the cycle named, and notices change between cycles: check the current one before you apply. Only IBPS gives sizes in pixels, which it calls preferred; SSC, CTET and Protean give centimetres. SSC gives the signature in centimetres, about 6.0 × 2.0 cm in the main text of its CGL and CHSL notices and 4.0 × 2.0 cm in their annexures, so the tool offers both, at 200 DPI (472 × 157 px and 315 × 157 px). CTET gives 3.5 × 4.5 cm for the photo and 3.5 × 1.5 cm for the signature with no DPI; the tool uses 300 and 200 DPI (413 × 531 px and 276 × 118 px). SSC captures the photo live in the form, as IBPS, UPSC, JEE and CUET do alongside the uploaded photo.

For a PAN card, Protean's scanning instructions set the photo at 2.5 × 3.5 cm and up to 20 KB, and the signature at 4.5 × 2.0 cm and up to 10 KB, both at 200 DPI. A Protean article of 20 January 2026 gives 50 KB for each and 5 × 2.5 cm for the photo; files within the instructions' limits meet both. Applying with Aadhaar e-KYC uses your Aadhaar photo, and no photo is uploaded.

NTA's NEET bulletin gives the finger and thumb impressions as both 10–200 KB and 50–300 KB; the tool keeps them within 50 to 200 KB, which meets both. NEET's 4 × 6 inch postcard photo is printed and brought to the exam, not uploaded: the Passport Photo Maker prints to a 4 × 6 sheet. UPSC shows its upload instructions on its application portal once you sign in.

Sources

Reviewed

Frequently asked questions

No. Your browser reads, resizes and saves the images on your device; they are not sent to CornerTools or anyone else. To check, open the browser's developer tools at the Network tab and add an image: no request carries it. The first HEIC photo you add downloads a decoder from this site: a download to your browser, not an upload of your photo.
At 140 × 60 px a signature on white paper holds too little detail to reach IBPS's 10 KB minimum, so it is enlarged just enough to reach it. IBPS calls 140 × 60 px its preferred size, not a requirement. The result says when this happens and shows the size.
Check that you uploaded the downloaded file, and that the exam and document match the form: limits differ between documents and between cycles. Portals count a KB as 1,000 or 1,024 bytes; the tool keeps every file inside the range under both counts. If your exam's current notice gives other limits, use Custom.
No: none of these notices asks for a name and date on the photo.

See also