Paper in. Clean ink out.
Put your real handwritten signature on a PDF.
Scan the signature you use on paper. Remove the background, place it precisely, and send the signed copy from your iPhone.
Download on the App StoreFor iPhone and iPadNo account. Documents and signatures stay on your device.
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PDF SIGN & SCAN · iPHONE
PDF SIGN & SCAN · iPHONEThe part other signers skip
Keep the handwriting. Lose the paper.
Scan the signature you write on paper. On-device cleanup removes the page and keeps the ink as a reusable, transparent signature.
Step by step
From blank paper to signed PDF
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Scan your signature
Write with dark ink. The camera removes the paper and keeps the stroke.
PDF SIGN & SCAN / 01 - 02
Open a PDF
Choose a PDF from Files, Mail, or Photos—or scan the page.
PDF SIGN & SCAN / 02 - 03
Place and share
Drag, pinch, then share the signed PDF.
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How-to guides
Do the exact thing you came for
Direct answers to real iPhone PDF questions, with the screen you need at every step.
05How to sign a PDF without printing itSkip the print-sign-scan loop. Add your saved handwritten signature directly to a PDF and share the signed copy.06How to sign a PDF from Mail or Files on iPhoneMove an email attachment or saved PDF into PDF Sign & Scan, add a signature, and return the signed copy.07Electronic signature vs. digital signatureUnderstand the practical difference between a visible electronic signature and a certificate-based digital signature before signing a PDF.08How to save and reuse a signature on iPhoneCreate a named signature once, keep it in your on-device library, and place it on future PDFs without drawing it again.09How to sign a PDF from Gmail on iPhoneOpen a PDF attachment from Gmail, add your handwritten signature, and send the signed copy back from your iPhone.10How to add a signature image to a PDF on iPhoneTurn a signature photo into clean transparent ink, place it over a PDF, and avoid the white rectangle behind it.11How to save a signature from a photo on iPhoneUse a photo you already took, remove the paper background, and keep the cleaned signature in an on-device library.12Apple Markup vs. a PDF signature app on iPhoneUse the free built-in tool for a quick finger-drawn signature. Use a dedicated app when you need handwriting from paper and a reusable library.13How to create a handwritten signature on iPhoneScan the signature you write on paper or draw one on screen, clean the result, and save it for PDFs.14How to scan and sign a document on iPhoneTurn a paper document into a PDF, place your saved handwritten signature, and share one signed file from your iPhone.15How to sign multiple pages in a PDF on iPhoneAdd a saved signature to several PDF pages, copy its placement when useful, and review every page before export.16How to sign a contract on iPhoneOpen the contract PDF, add your real handwritten signature, verify the document, and return a signed copy without printing.17How to sign a PDF from WhatsApp on iPhoneOpen a PDF received in WhatsApp, add your saved handwritten signature, and send back a flattened signed copy from your iPhone.18How to sign a scanned PDF on iPhoneAdd a saved handwritten signature on top of a scanned PDF page without converting the scan to editable text.19How to make a blue handwritten signature for PDFScan your handwriting from paper, clean the background, save the ink in blue, and place it on a PDF from your iPhone.20How to resize a signature in a PDF on iPhoneMove and pinch a handwritten signature until it fits the signature line without covering nearby text.21How to share a signed PDF from iPhoneExport a flattened signed copy, verify it, and send it through Mail, Messages, WhatsApp, AirDrop, or Files.22How to fix a blurry signature in a PDFRe-capture a soft signature, preserve fine strokes during cleanup, and avoid enlarging it past its useful size.23How to sign a lease PDF on iPhoneKeep the original lease, place your real handwritten signature on the correct page, and return a checked signed copy.24How to sign a permission slip on iPhoneSign a PDF permission slip received by email or message and return a clear copy without printing it.25How to sign a consent form on iPhoneReview a completed consent-form PDF, add your real handwritten signature, and send back a verified signed copy.26What is a scanned signature?A scanned signature is an image of a mark first written in ink on paper. Here is what the file contains, what it can prove, and when to ask for another signing method.27Scanned signature vs. digital signatureA scanned signature reproduces handwriting; a digital signature uses cryptography. Compare appearance, identity checks, document integrity, and practical use.28Electronic signature vs. handwritten signatureCompare an electronic signature with ink written on paper, including how each is created, delivered, stored, and accepted.29How to sign a PDF without an account on iPhoneCompare account-free ways to sign a PDF on iPhone: Apple’s built-in tools, a device-local signature workflow, and the privacy questions to ask before uploading a document.30How to protect a signature image in a PDFReduce casual reuse of a signature image by controlling the source file, sharing a final PDF instead of a loose PNG, and understanding what flattening can and cannot protect.31Signature PNG vs. JPG for a PDFPNG keeps transparency and sharp ink edges; JPG is designed for photographs and can add a white rectangle or compression artifacts around handwriting.32What size should a signature image be for a PDF?There is no universal signature pixel size. Start with a clean source, place it at the document’s signature-line width, and check the exported PDF at normal zoom.33Why can’t I sign a PDF on iPhone?A PDF may open but still refuse a signature because it is in a limited preview, permission-locked, already certified, or not the file you thought you saved. Use these checks before changing the document.34Why does a PDF signature disappear after saving or printing?A signature can vanish because the wrong copy was opened, an annotation was not committed, a viewer hides a layer, or print settings omit markups. Diagnose the file without damaging a digital signature.35How to sign a locked PDF on iPhoneBefore signing a locked PDF, identify whether it has an open password, editing restrictions, or an existing digital certificate. The safe next step depends on the lock.36What is a PDF signature stamp?A PDF signature stamp is usually a reusable visual mark placed on a page. It may contain handwriting, text, or an approval label, but it is not automatically a certificate-based digital signature.37How to check whether a PDF is signedA visible handwritten mark answers a different question from a validated digital signature. Check the page appearance, reopen the exact file, and use a signature panel when certificate proof matters.
PDF SIGN & SCAN · iPHONE / iPAD
Questions
Before you sign
Can I scan a handwritten signature from paper?
Yes. PDF Sign & Scan uses the iPhone camera to capture a signature, removes the paper background on device, and saves the cleaned result for reuse.
Can I export the signature as a transparent PNG?
Yes. Open the signature library, use the signature actions menu, and choose Export as PNG.
Does the app create a certificate-based digital signature?
No. It places your handwritten electronic signature and exports a flattened PDF. It does not issue certificates or create a cryptographic digital signature.
Where are my documents and signatures stored?
The app stores them on your device. There is no account and no document cloud upload in the signing flow.
Your real signature, ready when the PDF arrives.
Scan it once. Place it carefully. Send the signed copy from your iPhone.
Download on the App StoreFor iPhone and iPad