Is PDFWix really free?

Yes. Every tool on PDFWix is free to use with no daily task limits and no watermarks added to your files. We may charge for high-volume API usage in the future, but the web tools stay free.

Do I need to create an account?

No. Every tool works without signing in. An optional free account just keeps a history of your conversions (filename and tool only — never your files) and unlocks the developer API.

Do you store my files?

Most tools (merge, split, rotate, watermark, edit, JPG↔PDF, etc.) run entirely in your browser — your file never reaches our server. The two tools that need server processing (Protect PDF, Unlock PDF) process your file in memory and never write it to disk.

What's the maximum file size?

Browser-side tools handle PDFs as large as your device's RAM allows — roughly 100 MB on a typical laptop, less on phones. Server-side tools (Protect, Unlock) accept files up to about 25 MB per request.

Do you add watermarks to my PDFs?

No. PDFWix never adds a watermark, footer, or branding to anything you create. The output is exactly what you asked for, nothing else.

Does PDFWix work on iPhone, Android, and Chromebook?

Yes. PDFWix is a web app — it runs in any modern browser on any device. There's nothing to install. You can also add it to your home screen on iOS or Android for a one-tap launcher.

How is PDFWix different from iLovePDF or Smallpdf?

Three differences: most PDFWix tools run inside your browser (your file never leaves the device), there are no daily task caps on the free tier, and we never put a watermark on your output. As of June 2026, PDFWix has 24 live tools across merge, split, compress, sign, redact, and convert with no daily task limit and no file upload for 22 of them.

Is PDFWix safe for confidential documents?

For browser-side tools, yes — your file is processed locally and never transmitted anywhere. For the two server-side tools (Protect, Unlock), files travel over HTTPS and are processed in memory only. We never read, scan, or train AI on your documents.

Can I use PDFWix for commercial work?

Yes. There's no license restriction on what you produce with PDFWix. Use it for client work, internal documents, contracts, anything. The developer API is available if you need to embed PDF processing into your own product.

What happens if a tool fails or I find a bug?

Email support@pdfwix.com or use the "Report an issue" link in the footer. We read every message and ship fixes quickly.

Which PDF tools run entirely in my browser?

Twenty-two of the 24 PDFWix tools run entirely in your browser using WebAssembly — your file never leaves your device. The two exceptions are Protect PDF and Unlock PDF, which require server processing but handle your file in memory only and never write it to disk.

Is there a file size limit?

Browser-based tools handle files up to the available RAM on your device — typically 500MB or more on modern computers. Server-side tools (Protect, Unlock) currently support files up to 100MB.

Does PDFWix work on iPhone and Android?

Yes. All 24 PDFWix tools are fully optimised for mobile browsers. No app install required — open pdfwix.com in Safari on iPhone or Chrome on Android and every tool works exactly the same as on desktop.

Home / Guides / Sign PDF Free No Account

sign

How to Sign a PDF Free Without Creating an Account

Sign any PDF free with no account or email. PDFWix signs inside the browser — nothing ever reaches a server. Private, instant, no watermark, no signup.

4 min readUpdated todayNo upload

PPDFWix Team· Reviewed for accuracy

Files never uploaded Runs in your browser No signup No watermark

Sign PDF Free — No Account

Live · in browser

Go to PDFWix Sign PDF. Upload your document. Add your signature by drawing, typing or uploading. Download. No account, no email address, no registration of any kind. Your PDF is processed inside your browser — it never reaches any server. Zero data stored.

Why most free PDF signers require an account

Most free e-signature tools require you to create an account because they process your files on their servers. Account creation gives them your email address for marketing, links your documents to your identity, and allows them to up-sell premium features. When a PDF tool processes files on a server, they need to know who you are to manage your files, send you download links, and limit free usage by account.

PDFWix does not require an account for signing because the processing runs entirely inside your browser using WebAssembly — your file never leaves your device, so there is no need to identify you or store your data on any server.

How to sign a PDF without creating an account

Open PDFWix Sign PDF directly — no landing page, no registration prompt.
Upload your PDF. Watch the browser process it locally — you can verify this by opening DevTools (F12) and checking the Network tab: no file upload request will appear.
Add your signature: draw with your mouse, type your name, or upload a signature image.
Drag the signature to position it on the correct line.
Click Download. The signed PDF saves directly to your device.

Why no account does not mean no security

Processing PDFs without an account is actually more private than processing with one. When you create an account, you link your identity to your documents. Server-based tools store copies of processed files — for audit purposes, fraud prevention, and often for longer. Browser-based processing means no copies are ever created on a third-party server. Your signed contract, NDA, or personal form stays on your device only.

For confidential documents — employment agreements, financial forms, medical consent forms — browser-based signing without an account is the highest-privacy option available. See our detailed guide to online PDF tool privacy and how PDFWix handles your files.

Use the free PDFWix tool:

Sign PDF Free — No Account →

Frequently asked questions

Why do other free PDF signers require an account?

Most e-signature tools process files on their servers. They require an account to manage your files, send download links, and limit free usage. PDFWix processes signatures inside your browser using WebAssembly, so no server account is needed — your file never leaves your device.

Is a PDF signed without an account legally valid?

Yes. Legal validity of an electronic signature depends on the signing act itself, not on whether the signer has an account with a platform. Under the ESIGN Act and eIDAS, any electronic mark indicating intent to sign is valid. Signing with PDFWix without an account produces a legally valid simple electronic signature.

How can I verify my PDF is not being uploaded when I sign?

Open Chrome or Edge DevTools with F12. Click the Network tab. Upload your PDF to PDFWix Sign PDF and watch the Network tab — you will see no outbound file upload request. Only static resources (fonts, scripts) load from PDFWix servers. Your file never leaves your browser.