Crop a signature from a photo, image or picture of paper and size it for an exam or ID form. Out comes a 472×236 JPEG with 300 ppi written, between 10 and 20 KB, for the SSC 4.0×2.0 cm rule, or the PAN 400×200 size.
Trim to the ink finds the dark strokes on lighter paper on a small copy of the photo and frames them with a margin, at the requirement's ratio. The signature itself is not touched: no whitening, tracing or sharpening, only framing and the resize the requirement asks for.
The photo for the same form is on form photo crop, and a passport-size photo on passport photo crop. Margins on a scan go with auto crop; a tilted page with straighten photo. Every size and its source is in the spec table.
What you can do here
Trim to the ink
The page finds the darkest marks on the paper and puts the box around them with a 4–10% margin, at the requirement's ratio.
The requirement's size
SSC: about 4.0×2.0 cm, 472×236 px at 300 ppi, 10–20 KB, from the notice itself. PAN: 400×200 px up to 60 KB, from secondary sources, flagged.
KB range, honestly
Quality goes up or down to land inside the range. A file is never padded with junk bytes to reach a minimum.
The signature is not redrawn
No whitening, no sharpening, no tracing: the pixels of your signature are the pixels of your photo.
How to signature crop and resize
- 1Photograph the signature
Sign in dark ink on plain white paper, and photograph it straight on, filling most of the frame. Open the photo here.
- 2Trim to the ink
Press Trim to the ink under Signature. If the paper is tilted, straighten it first under Rotate & straighten, then trim again.
- 3Check the verdict and download
The contract states 472×236 px, 300 ppi and the KB; the verdict checks each clause on the bytes. Download saves exactly that file.
Questions about cropping
What size is a 4×2 cm signature in pixels?
At 300 pixels per inch, 4.0 cm is 472 pixels and 2.0 cm is 236, so the SSC row writes a 472×236 JPEG with 300 ppi in its header. A portal that reads the density sees 4×2 cm; one that only checks pixels sees 472×236.
My photo of the paper is at an angle. What do I do?
Straighten it first under Rotate & straighten: drag the angle slider or draw a line along the paper's edge, then press Trim to the ink. A strongly tilted photo of a page (perspective, not just rotation) is best retaken from straight above.
The paper looks grey. Will it be rejected?
Some portals want a white background. This page frames and sizes the signature; it does not lighten the paper or change the ink. Retake the photo in daylight on white paper, filling the frame with the page.
Can I get a transparent signature for documents?
Not on this page. Making paper transparent means deciding which pixels are paper and which are ink, which is a change to the picture rather than a crop. What comes out is a JPEG of the paper and ink as photographed.
Will it change my signature?
No. The box moves and the file is resized to the requirement's pixels; the strokes are not traced, smoothed or sharpened.
What if the file comes out under 10 KB?
Quality is raised first. If even the highest quality is under the minimum, the page says how small it is and suggests a larger crop. It never pads the file with junk bytes to reach a number.