Remove.bg for stamps and signatures
When a universal service fails — and what to use instead
Many people search for remove.bg to remove the background from a seal, stamp, or handwritten signature. For regular photos, the service works perfectly, but on scans and photos of documents, the result is often disappointing: form text, lines, and "dirt" around the impression remain. SigCleaner was created specifically for such tasks.
Why remove.bg is often unsuitable for stamps and signatures
Form text and lines
Remove.bg perceives inscriptions, numbers, and table lines as part of the image. In the output, they often remain along with the stamp — such a file cannot be used for insertion into Word or PDF.
Round stamp on a document
The stamp impression is often semi-transparent and lies on top of the text. Remove.bg does not "understand" that it needs to keep only the outline of the stamp and remove everything else.
Limits and payment
Remove.bg's free mode is limited in resolution and quantity. For regular work with documents, credits or a subscription are required.
How SigCleaner differs from remove.bg
SigCleaner is tailored for seals, stamps, and handwritten signatures on documents — not for arbitrary photos.
Removes document background
White and colored paper, printed text, lines, grids — the service cleans up everything unnecessary around the impression.
Element extraction
If both a stamp and a signature are in the same photo, you can keep only the needed element: extract stamp or extract signature.
Aggressive mode
On complex forms with dense text around the impression, aggressive text removal helps.
No registration
No subscription, no watermarks, no registration for basic use.
PDF support
You can upload a PDF document, select a page, and process the impression directly from the scan.
Photo editor
After cleaning, you can change the stamp color, brightness, and contrast in the built-in editor.
Comparison of remove.bg and SigCleaner
Remove.bg
- Universal background removal from photos
- Form text and lines usually remain
- PDF documents are not supported
- Free with limitations, then paid
- No "stamp only / signature only" mode
SigCleaner
- Seals, stamps, and signatures on documents
- Removes background, text, and lines around the impression
- PDF support
- No watermarks, no registration
- Extraction of stamp or signature separately
How to remove a stamp background instead of remove.bg
Upload the image
Open the main page and upload a photo, scan, or PDF with a stamp or signature. PNG, JPG, and PDF up to 20 MB are supported.
Crop only the impression
Select only the seal, stamp, or signature — not the entire sheet. The less unnecessary content in the frame, the cleaner the result.
If necessary, enable "Extract individual elements" or "Aggressive mode".
Download the transparent PNG
Click "Remove background", wait for processing, and download the file. The finished PNG can be inserted into Word / Excel or PDF.
Frequently asked questions
Yes — if the task is related to seals, stamps, or signatures on documents. For portraits, products, and regular photos, remove.bg is still appropriate.
No. It is a separate service with a different algorithm tailored for documents. The name remove.bg is often searched as a synonym for "remove background online" — SigCleaner solves this task for a narrow niche.
Try SigCleaner: crop the area with the impression, and enable aggressive mode if necessary. Tips on source quality: how to photograph a stamp.
Yes. SigCleaner provides an API for automatic background removal. Details are on the API documentation page.
What to read next
Try it now
If remove.bg failed with your stamp or signature — open the main page and process the file in a minute.