Are digital signatures created with this tool legally binding?

Signatures created here may qualify as Simple Electronic Signatures (SES) under statutory frameworks such as the US ESIGN Act and EU eIDAS regulations. However, legal standing depends on jurisdiction, document type, and mutual party agreement. High-stakes deeds, family law instruments, and court filings often require cryptographic digital certificates.

Does this tool upload my signed PDF or signature image to a server?

No. The entire signing workflow runs locally inside your web browser. File parsing is handled by pdfjs-dist and final document construction is handled by pdf-lib in your device RAM. Your document is not uploaded, and we keep no server-side copy of it.

Can I sign documents on a mobile phone or iPad using a touchscreen?

Yes. The drawing canvas supports touch events, allowing you to use a finger or capacitive stylus directly on iPhone, iPad, Android tablets, and touch laptops.

What is the difference between a simple electronic signature and a cryptographic digital signature?

A simple electronic signature is a visual mark, typed name, or drawn symbol placed on a document. A cryptographic digital signature relies on Public Key Infrastructure (PKI) and digital certificates to mathematically verify signer identity and detect document tampering.

Can I add initials and date stamps to multiple pages of the same contract?

Yes. You can place signatures, initials, text labels, and date stamps across distinct pages. The engine retains annotations across all pages and bakes them together upon export.

Does signing a PDF flatten existing interactive form fields?

The engine constructs a renewed PDF document containing your added visual layers while preserving underlying vector content. However, preexisting interactive AcroForm fields may be baked into standard page content.

Free & Private Online Browser Utility

Sign PDF - Fill & Sign Documents

Sign, initial, date, and annotate PDF documents directly inside your web browser. Built on pdfjs-dist and pdf-lib, our client-side signing workspace renders document pages onto high-resolution canvas viewports and embeds annotations directly into the PDF object tree. You can draw your signature with calibrated pen strokes, type an autograph using cursive typography styles, or upload transparent PNG signature stamps. The application also provides quick tools for inserting formatted date stamps, freehand text fields, and form checkmarks. Processing occurs entirely in your browser RAM without transmitting confidential agreements or personal identity records to external servers. The tool does not store signature keys in cloud databases, does not apply decorative brand watermarks, and does not alter underlying vector typography.

How to use

Step 1: Upload Your Target Document

Drag and drop your PDF agreement, tax form, or lease contract into the signing zone or select it from your device file manager. The in-browser viewer renders page previews immediately.
Step 2: Create and Position Your Signature

Click Signature or Initials to draw on the smooth ink pad, type your name in cursive script, or upload an existing signature PNG. Drag, resize, and position the stamp anywhere across the page.
Step 3: Bake Annotations and Download

Add date stamps or text fields if needed, then click Download Signed PDF. Choose whether to export all pages, only the current page, or a custom page range to save your finalized document.

Options explained

Draw Signature Pad

Captures freehand vector ink strokes using mouse, touchpad, or touchscreen stylus input with customizable ink colors and stroke widths.

When to use: Best when you want a handwritten signature that matches your physical penmanship for contracts and authorizations.

Type Cursive Script

Generates elegant typographic signatures rendered from customizable cursive fonts, with choices like Executive Script, Modern Autograph, and Classic Flourish.

When to use: Helpful when signing on desktop computers without a stylus or trackpad, producing legible and professional digital signature graphics.

Date, Text & Symbol Annotations

Inserts one-click formatted calendar dates, editable text labels, or green checkmark and red cross symbols directly onto document forms.

When to use: Essential when filling out employment questionnaires, rental applications, and vendor onboarding packets that require checked boxes and completion dates.

Selective Page Export

Enables exporting all document pages, the currently active signed page, or a custom range (such as 1, 3-5).

When to use: Useful when signing a multi-page loan agreement where only the final execution page needs to be extracted and submitted to your loan officer.

Worked example

Input: docs/samples/sample-doc-a.pdf — 968-byte PDF, 1 page, date stamp annotation

Output: Embedded vector date annotation into 1-page sample-doc-a.pdf (968 bytes) via pdf-lib: added a date stamp to produce a 1,383 byte PDF document in client browser memory

415 bytes is the whole cost of the stamp on this run, and it belongs to the annotation: the box, the appearance holding the rendered text, and the object tying it to the page. The content underneath is left exactly as it was, so a document that gave up its text before signing gives up the same text after — and because the mark is stored with the file rather than as a viewer preference, it travels to whoever opens the download.

Tips & limits

Signatures drawn on the canvas are embedded into the PDF structure as high-resolution PNG image objects, preserving smooth curves across all PDF readers.
For multi-page contracts, navigate between pages using the top toolbar; annotations placed on separate pages remain saved in local memory until download.
When preparing transparent signatures, crop extra white borders around your uploaded PNG image before placing it to make alignment easy.
Because document compilation executes in local RAM, sensitive personal documents like medical records, tax filings, and NDA agreements never touch external networks.

Common problems

Uploaded PDF fails to open or displays a loading error: Confirm that the document is not protected by an owner password or encrypted with proprietary DRM certificates. Remove document security restrictions before opening in the browser.
Signature appears blurry when viewing the downloaded PDF in print: Raise the zoom percentage before you draw or place anything — the control prints the figure and starts at 100% — or stamp a PNG that already carries the pixels you need, meaning roughly 300 pixels per inch of the size it will be printed at.
Page canvas does not respond to mouse drawing or touch stylus: Check that hardware graphics acceleration is enabled in your web browser settings to ensure the HTML5 2D canvas context initializes properly.

Frequently Asked Questions (FAQ)

Are digital signatures created with this tool legally binding?: Signatures created here may qualify as Simple Electronic Signatures (SES) under statutory frameworks such as the US ESIGN Act and EU eIDAS regulations. However, legal standing depends on jurisdiction, document type, and mutual party agreement. High-stakes deeds, family law instruments, and court filings often require cryptographic digital certificates.
Does this tool upload my signed PDF or signature image to a server?: No. The entire signing workflow runs locally inside your web browser. File parsing is handled by pdfjs-dist and final document construction is handled by pdf-lib in your device RAM. Your document is not uploaded, and we keep no server-side copy of it.
Can I sign documents on a mobile phone or iPad using a touchscreen?: Yes. The drawing canvas supports touch events, allowing you to use a finger or capacitive stylus directly on iPhone, iPad, Android tablets, and touch laptops.
What is the difference between a simple electronic signature and a cryptographic digital signature?: A simple electronic signature is a visual mark, typed name, or drawn symbol placed on a document. A cryptographic digital signature relies on Public Key Infrastructure (PKI) and digital certificates to mathematically verify signer identity and detect document tampering.
Can I add initials and date stamps to multiple pages of the same contract?: Yes. You can place signatures, initials, text labels, and date stamps across distinct pages. The engine retains annotations across all pages and bakes them together upon export.
Does signing a PDF flatten existing interactive form fields?: The engine constructs a renewed PDF document containing your added visual layers while preserving underlying vector content. However, preexisting interactive AcroForm fields may be baked into standard page content.

How ESIGN, UETA and eIDAS Treat a Drawn Signature

US law defines an electronic signature by intent rather than by technique. The ESIGN Act of 2000 (15 U.S.C. § 7001) describes one as an "electronic sound, symbol, or process, attached to or logically associated with a contract or other record and executed or adopted by a person with the intent to sign the record," and the Uniform Electronic Transactions Act (UETA), adopted in most US states, applies the same idea at state level. The EU's eIDAS Regulation (EU No 910/2014) instead sorts signatures into tiers, and the higher tiers require a certificate issued by a trust service provider.

Because the definition does not name any particular software, a mouse-drawn mark placed on a PDF is generally treated like a handwritten one in routine paperwork. What no editor can supply by itself is evidence of who signed, proof that the file was not altered afterwards, and the counterparty's willingness to accept an electronic form. The questions that usually decide whether a signed file hold up are:

Intent: did a person mean to sign this record. ToolVerve stores nothing about the signing session, so the evidence is your own records.
Association: does the mark stay bound to the page. The pdf-lib engine writes the signature into the document itself, so it travels with the file instead of floating on top of it.
Integrity: did anything change after signing. A drawn image is not a cryptographic seal; tamper evidence needs a qualified digital certificate.
Acceptance: does the receiving party and the document type allow electronic form. Deeds, wills, court filings and certain notices commonly carry extra formalities.

This page describes how the tool behaves. It is not legal advice, and ToolVerve does not represent that a document signed here is enforceable in your situation.

Why Workplaces & IT Departments Block Cloud Signing Services

Corporate security policies strictly prohibit employees from uploading proprietary documents, non-disclosure agreements, customer lists, and financial statements to unvetted third-party cloud converters. Many legacy signing platforms store uploaded PDFs on public cloud storage buckets, index metadata, and retain files for marketing conversion funnels.

ToolVerve offers an professional-grade alternative built specifically for privacy-restricted environments. Because every operation—from PDF decoding in pdfjs-dist to canvas compositing and vector serialization in pdf-lib—executes locally in device RAM:

No confidential contract text or names cross external networks.
No risk of data exposure through third-party cloud breaches or subpoena requests.
Supports strict internal corporate data isolation policies — your signed documents never leave your device.