Free PDF Signer: Draw or Upload Digital Signature | WhyTomic
PDF TOOLS • CLIENT-SIDE
Free Online PDF Signer
Draw your signature or upload a photo of it. We securely place it anywhere on your document.
100% Free Online
Secure Client-Side
AI Paper-BG Removal
Upload PDF Document
Drag and drop your PDF here, or click to browse
1. Create Signature
Signed on white paper? No worries!
Our tool automatically removes the paper background.
2. Position & Resize
Drag the signature to the correct spot. Use the slider below to resize.
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Securely applying your signature directly in your browser.
Success! PDF Signed
Your document has been securely processed.
Frequently Asked Questions
How can I extract a signature from a white paper online for free?
Upload a photo of your handwritten signature to our tool and adjust the sensitivity slider to eliminate paper shadows. The tool runs directly in your browser, extracting crisp ink as a transparent PNG suitable for digital contracts and PDFs.
What is the best way to make a signature background transparent?
Unlike generic background erasers that blur delicate pen strokes, our tool uses a custom luminance threshold engine. It isolates your exact pen ink, darkens it to pure black or royal blue, and removes uneven shadows completely.
How to clean and prepare a signature for online exam forms (UPSC, SSC, IBPS, RRB, State PSC)?
For competitive exams like UPSC, SSC CGL, IBPS PO, RRB Railway, and State PSCs, portals often reject photos with grey shadows or yellow paper backgrounds. Simply upload your paper signature photo here, slide the threshold to wipe out background tint, convert the ink to solid black, and download a crisp signature ready for form upload under required file limits.
Will this tool change my signature file dimensions or blur the strokes?
No. The tool maintains original aspect ratio and resolution. You can fine-tune edge softness so thin pen strokes remain clear and readable for official verification portals.