A clean signature.
Without the paper.

Start with the photograph

Use a signature you are authorised to place. Sign on plain, unlined paper using a pen that contrasts with it. Put the paper in even light and hold the camera parallel to the page. A shadow, crease or dark background can be mistaken for part of the mark.

Focus before taking the photo. Check the ends of strokes and any small loops in the original: extraction cannot recover a line that the camera did not capture. Keep the original photograph so you can try a different crop later.

Crop, then remove the background

Open the signature scanner and choose a JPG, PNG or WebP image. Inputs are limited to 10 MB and 24 megapixels, with no side longer than 12,000 pixels. Crop around the whole signature, leaving a small margin rather than cutting through a stroke.

1. Correct the orientation in Preparation and continue.
2. Try Extract Object Lite. Where needed, add Keep or Remove guidance, or draw a box or lasso around the subject.
3. Compare the original with the cutout at a useful zoom. Check the outermost strokes, not just the centre.

AI extraction is optional and can require a model download for local processing. Optional server AI, if available, is a separate workflow requiring a preview and consent. See how file processing works.

Know what transparency looks like

The checkerboard in Docifer represents transparent pixels. It is a viewing aid, not a background that should appear in the export. A white-looking image in another viewer may simply be displayed on a white page.

Place the downloaded PNG over a coloured background to check for white patches. If thin strokes are missing, return to Edit and restore the missing pixels. If paper remains, erase it carefully. Sharpening is not a substitute for a clear source and can change delicate edges.

Save and place it at a sensible size

Accept the result and download it as PNG. JPEG does not support transparency: a conversion to JPEG fills transparent areas. Changing that JPEG back to PNG does not undo the flattening.

For example, a signature photographed on a large sheet may initially take up only a small part of the image. A close crop makes the mark easier to position on a form without enlarging the empty paper area. The right final size depends on the form; there is no universal signature dimension.

In the document editor, place the PNG within the signing area and keep its proportions when resizing. Check that the mark does not overlap a date or a printed label. Export the document and inspect the downloaded copy.

Before you submit

• The full mark is present, including thin strokes and dots.
• There is no unexpected white rectangle or remaining paper around it.
• The format, dimensions and byte size meet the receiving site’s instructions.
• The final document shows the mark in the intended position on the correct page.

A pasted signature image is not a certificate-based digital signature. If the recipient requires a verified signing service, follow that process. This workflow prepares an image; it does not establish identity or legal acceptance.