In short: If you ever signed a scanned document saved as PDF, you can extract that signature and save it for reuse - in contracts, forms, or your email signature.
When do you need this?
A few recurring situations:
- Recurring contracts - You sign the same type of document every month. Instead of printing, signing by hand, and rescanning - reuse a signature you already have. For Hebrew contracts specifically, see Editing Hebrew Contract PDFs - Complete Guide
- Government forms - Tax forms, social security, and bank PDFs that arrive as PDFs and require a signature. See Hebrew Government PDF Forms
- Email signature - Adding your handwritten signature as an image at the bottom of every email gives a professional look
- Internal documents - Approvals, declarations, and recurring organizational paperwork
- Logo extraction - If you're looking to extract a company logo rather than a signature, the process is similar - see Extracting a Logo from PDF
Only your own signature
Important to note: this tool is meant for extracting your own signature only. Using someone else's signature without their permission - whether to paste it on a document or for any other purpose - is prohibited.
In most jurisdictions, forging another person's signature is a criminal offense covered under fraud statutes. Even if a signature is publicly available (for example, on a public document), using it without the owner's consent is illegal. The rule is simple: if it's not your own handwriting, or a signature you have explicit permission to use, don't touch it.
Difference between scanned and digital signature
| Type | What it is | Use |
|---|---|---|
| Scanned signature | An image of your handwritten signature | Pasted as an image on PDF documents |
| Secure digital signature | An encrypted file that authenticates identity | Required for legal contracts with verification |
Most everyday uses - internal contracts, organizational forms, consent and approval forms - work fine with a scanned signature as an image. If that fits your need, use our Digital Signature tool - which lets you sign directly within a document without extracting an existing signature first.
Why extraction beats other methods
There are several ways to reach the same result. Each alternative has drawbacks:
- Screenshot - You can open the PDF, zoom into the signature area, and screenshot it. Drawback: quality drops with each zoom level. The signature will come out pixelated and may include parts of the viewer interface. Direct extraction from the file preserves maximum quality.
- Re-signing - Sign on a clean sheet and scan it. Works, but takes time and requires a scanner or a phone with a proper scanning app. And without practice, the signature you scan now will look different from the signature already on previous documents of yours.
- Signing on a tablet or graphics pad - The signature looks digital, too clean, and won't match the aesthetic of a handwritten signature. For internal approval that's fine, but for documents that should resemble your usual signature - not ideal.
- Manual cropping from an image file - If you have an image of the document as JPG, you can crop and get a signature. Drawback: if the document is a PDF (and most are), you need to convert it to an image first, then crop - two extra steps.
Direct one-click extraction from PDF is the fastest, highest-quality path.
What the process actually looks like
Suppose you have an old contract sitting in a folder. You open the signature extraction tool and drag the PDF in. Within seconds, a list of images the tool found in the file appears - logos, stamps, signatures.
You scan the images. If the document was scanned as a single image per page, each page will appear as one image. If the signature was embedded separately (which happens with digital editing), it'll appear on its own. Pick the signature, click download. The file saves to your computer as a PNG.
Total time: under a minute. No installs, no signups, no need to upload to any cloud account.
How to save the signature properly
After extracting, save it correctly:
- PNG format - preserves transparency if present, no quality loss
- Clear name - e.g.,
my-signature-2026.pngso you can find it easily - Safe location - keep it in a folder you can locate, not in a downloads folder that gets cleaned
- Not in a public cloud - don't upload your signature to a shared drive or to a folder your team's Slack can see. The signature is a personal asset that could be misused for forgery if it ends up in the wrong hands
- External backup - if your computer is stolen or breaks and you don't have the signature, you'll need to extract again or sign fresh. A short backup saves a lot of time
Common problems and fixes
The background is white instead of transparent. This is the most common issue. If you scanned the signature on a white sheet, the white background is part of the image. Often it's not a problem - it blends with the white background of the new document. If the background gets in the way (for example on a colored or printed document), you can remove it in a few clicks using any image editor that supports transparency.
The signature is blurry or pixelated. Output quality depends on the source. If the PDF was scanned on a phone without good lighting, the signature will be poor. The fix: rescan with a desktop scanner or a high-quality scanning app, or find another PDF with the same signature at better quality.
You have a different signature that fits this case better. If in the past you used a full signature and now want a shortened one - extract both, save with different names (signature-full.png, signature-short.png), and use whichever fits.
The signature is cut off at the edges. This happens when the signature was originally close to the edge of the page. The only fix: re-sign on a sheet and scan with larger margins.
The PDF is password-protected. The tool won't be able to read the content. You need to remove the password first, then extract.
Real-world examples
- A freelancer sending a monthly invoice to the same client. Signed once, scanned, extracted. Now every invoice is ready without leaving the chair.
- An HR coordinator issuing offer letters. The CEO's signature is extracted once and used on all letters. Time saved adds up to dozens of hours per month.
- A real estate broker signing disclosure forms with every client. Instead of print-sign-scan, embeds the signature directly.
- An accountant who needs to sign income confirmations. The scanned signature is much faster than a secure digital signature pipeline, and for most needs it's enough.
The rule: any place where you sign more than once a month on the same type of document - signature extraction saves time.
What to do with the signature after extraction
You now have a PNG file. A few uses:
- Embedding in a new PDF - Use our PDF Editor, drag the signature to the right spot in the document
- Adding to forms - In the Form Filler tool, you can upload the signature as an image and place it in the signature field
- Email signature - Upload the signature as an image in your Gmail or Outlook email signature settings
- Recurring template - Create a Word or PDF document with the signature embedded at the end, and save as a template. Each time you need it, just open, adjust, send
What if there are multiple signatures in the same document?
Some documents contain more than one signature - a two-party contract, an approval with manager and employee signatures, or a form requiring signing in multiple places. The tool will display all images it found, and you select one per download. If you need several signatures, just repeat the process - select, download, repeat.
Tip: when saving, use a name that represents the signer - signature-john-2026.png, signature-manager-2026.png. When you return to the folder six months later, you won't remember whose signature is whose.
Faded signature? You can improve it
If the signature you extracted looks pale or unclear, you can boost it in a basic image tool - raising contrast by 30-50% turns a gray signature into a clear black one. Save the edited version under a separate name to keep the original intact.
Extract now with Kovetz PDF
Kovetz PDF's signature extraction tool shows all images found in a PDF and lets you pick and download. No installation, free.
If your PDF is password-protected, you'll need to remove the password first to access the content. And if you want to sign a new document digitally rather than extract an old signature, use the Digital Signature tool.
Types of Signatures and Legal Standing of Each
Before using an extracted signature, it is worth understanding the legal status it carries compared to other forms:
1. An original handwritten signature (pen on paper)
The highest legal standing. A court accepts it as direct evidence. Drawback: requires physical presence or postal exchange.
2. A scanned signature (what we extract here)
Accepted in most internal documents, approvals, and agreements where the parties have agreed on the signing method. Not admissible as evidence if the other side objects and claims forgery - because it is relatively easy to copy.
3. A digital signature with a certified credential
An electronic signature backed by a digital certificate from an approved provider (such as Comsign in Israel) - has the same legal weight as a full handwritten signature. Required for real-estate contracts, powers of attorney, and many official documents.
4. A simple PDF digital signature (signature field)
A digital signature field embedded in the PDF with IP address and timestamp. Mid-level - more robust than a scan, less rigorous than a certified credential. Suitable for commercial agreements between partners who know each other.
The takeaway: An extracted signature is a convenient time-saver, but not a substitute for a verified digital signature in documents where the signature itself is the central piece of evidence. For a deeper discussion, see Digital Signature Legal in Israel.
Fixes for Low-Quality Signatures
A signature that came out blurry, faded, or with a dirty background is not lost. Here are several improvement techniques:
Basic image editing:
- Raising contrast 30-50% turns light gray into clear black
- Reducing brightness 10-20% emphasises the strokes
- Applying a Sharpen filter improves edge clarity
- Noise Reduction cleans up stray dots
More advanced techniques:
- Convert to black-and-white with a clear threshold to remove gray background
- Erase non-signature content (rather than applying a global change)
- A small downscale can sometimes hide imperfections
Alternatives if the touch-up fails:
- Resign on a clean page, scan at 600 DPI in Grayscale mode
- Sign on a graphics tablet (Wacom or similar) and save as PNG with transparency
- Use a different signature from the same person that you have on hand - if you have multiple signatures, pick the clearest
Related Guides
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Frequently Asked Questions
Is it legal to extract a signature from a PDF?
Your own signature - yes. Extracting someone else's signature without their permission may constitute misuse and is prohibited. This guide deals only with your own signature.
Will the extracted signature look clean without a white background?
When the signature is embedded in the PDF with transparency - yes. If it was scanned on a white sheet and embedded as an image on a white background, the white background will remain. In that case, you can remove it with any basic image editing tool.
Is the extracted signature good enough for contracts and official documents?
Usually yes - provided the source PDF was reasonable quality. For formal legal needs that require authentication, check what the receiving party specifically requires.
What if the extracted signature looks blurry?
Output quality depends on the source PDF quality. If the document was scanned at low resolution, the signature will reflect that. If you have a higher-quality scanned copy - try that one instead.
Can I extract a signature from a password-protected PDF?
No - you need to remove the password protection first to access the content.
The signature came out black-and-white even though I signed in blue. Why?
If the scanner was set to Black & White mode, the color was lost during scanning itself. Re-scan in Color or Grayscale mode and extract again. If the document was already scanned and that's all you have, you can manually colorize the signature in any basic image editor.
I see lots of images in the PDF but not the signature. Why?
Two possible reasons. First: the signature is part of a single full-page scan image, not a separate image. In that case, you'll need to crop the signature area from the larger image. Second: the signature is digital (vector) and not an image at all. If that's the case, take a screenshot of the signature area and crop.
How many times can I reuse the same extracted signature?
No technical limit. The signature is a regular image file - you can use it infinite times. The only restrictions are legal: don't use it on documents you didn't agree to.