StampInk is a browser-based platform for creating, signing, and marking up documents, built for Notaries Public and all others who professionally annotate documents. Add your signature, notarial certificate, and stamp, digitally sign with your own certificate, then print or save. Your files stay in your browser — no installs, no cloud uploads.
No training required. If you've ever filled out, signed, and stamped a paper document, StampInk works the way you already think.
01 — OPEN
Open or create a document
Drop in any PDF or photo (JPG, PNG, BMP, WEBP), scan a page with your camera, or start from a blank file. Documents open right in your browser — they are never uploaded.
02 — MARK UP & SIGN
Fill, sign, and stamp
Type in the blanks, sign by drawing, typing, or uploading your signature, drop in a saved notarial certificate and your stamp, and add a date and time. Undo anything, instantly.
03 — PRINT OR SAVE
Print it or save the copy
Save a copy with everything permanently embedded — printable, shareable, and readable in any PDF viewer. Your original file is never modified.
From a quick signature to full document markup — the complete toolkit, accessible from any browser.
Select & resize
Pan
Text label
Sign / Stamp
Insert image
Timestamp
Table / Legend
Pen (freehand)
Highlighter
Eraser
Line
Rectangle
Arrow
Circle / Ellipse
Triangle
Polygon
Diamond
Measure
Scan
Built for people who work with documents
Notaries first. Professionals welcome.
One tool, two workflows. StampInk adapts to how you actually work — on a tablet at the signing table or a laptop at your desk.
🖋️
Notaries public
Mobile or office-based, StampInk keeps everything you use at a signing in one place — no more hunting for the certificate or stamp file.
Insert a saved notarial certificate in one tap
Place your signature, initials, and stamp from a protected vault, unlocked by a password, a security key, or both
Timestamp, fill the blanks, and add pages as needed
In-person electronic signings (IPEN): sign and stamp on a tablet, with touch or stylus
Digitally sign finished documents with your own .p12/.pfx certificate
Print the finished document or save a marked-up copy
🗂️
Other professionals
Paralegals, real estate and title teams, schools, small businesses — anyone who signs and marks up PDFs every day.
Sign and initial contracts, forms, and releases
Highlight, comment, and draw directly on the page
Tables, shapes, arrows, and measurements when you need them
Annotations print in every PDF viewer
Interface in English or Spanish
In-person notarizations, on paper or on screen. StampInk is a document creation, signing, annotation, and workflow platform. You may use its electronic-signature and document features in connection with in-person notarizations, including in-person electronic notarization (IPEN), where permitted by applicable law. It is not a remote online notarization (RON) service. The notary is responsible for determining whether and how StampInk may be used for a particular notarization.
Saved items
Your signature and stamp, ready — and protected
Stop browsing for the same files at every signing. Save them once, keep your signature and stamp encrypted on your own device, and place them in a tap.
Four saved slots. Signature 1, Signature 2 (for example black and blue ink), Initials, and Stamp, all behind one unlock: a password, a security key such as a YubiKey, or both.
Encrypted on your device. Your password never leaves your device, and nothing is sent to our servers. We can't recover a forgotten password — by design.
Optional security key. Unlock with a hardware security key such as a YubiKey (PIN and touch, no password), or require both. It all stays on your device. We can't recover a lost key either, so add a backup key.
Quick-insert certificates. Keep up to eight labeled images, such as a notarial certificate or letterhead, one tap from the page.
Draw, type, or upload. Upload accepts JPG, PNG, WEBP, and BMP.
Digital certificate signing. Import your own digital certificate (.p12 or .pfx) from your provider and use it to digitally sign finished documents, in addition to your visual signature and stamp. It is stored encrypted on your device under the same unlock, and signing happens in your browser.
Pricing
Simple, transparent pricing
Start free with all tools. Upgrade when you need clean, professional output. No per-page charges. No hidden fees.
Basic
Free
All the markup and signing tools, forever. Saves include a visible watermark.
A seat is one person. One seat covers that person on all their devices — their office computer, their tablet, their phone.
📱 What is a device?
Each browser/device where you activate a license key counts as one device. Professional seats include up to 3 devices per seat.
🔄 Can I switch devices?
Yes. Use the device management portal to deactivate an old device and free up a slot for a new one. No need to contact support.
StampInk is currently licensed to individuals. Need licenses for several people? Each person needs their own seat.
Free trial
Request your free trial code
Enter your work email and we'll send a trial code within 1 business day. No credit card. No commitment.
No credit card. No commitment.
FAQ
Common questions
No. Your PDF is processed entirely within your browser session. Files are never stored on our servers — they're held in memory only while you're working, and discarded the moment you close the tab. What goes in stays with you.
No. StampInk is a document markup and signing tool designed for in-person work. It does not provide identity proofing, credential analysis, audio-video sessions, electronic journals, or e-seals. Notaries are responsible for following their own state's laws on notarial acts, certificates, seals, and signing.
StampInk is a document creation, signing, annotation, and workflow platform. You may use its electronic-signature and document features in connection with in-person notarizations, including in-person electronic notarization (IPEN), where permitted by applicable law. In a typical in-person signing, you and the signer are together, the signer signs on a tablet or phone with a finger or stylus, you add your notarial certificate and stamp, and you save or print the result. The notary is responsible for determining whether and how StampInk may be used for a particular notarization, including any state requirements for the electronic signature, seal, technology, and records. StampInk also lets you apply your own digital certificate signature to the finished document. N2EDU INC. does not give legal advice.
In in-person electronic notarization (IPEN), the signer and the notary are physically together and the document is electronic. In remote online notarization (RON), they are in different places and meet over audio-video technology. StampInk is built for in-person work only; it is not a RON service.
StampInk is not a remote online notarization service, and it is not certified or approved by any state. N2EDU INC. does not verify any user’s notarial commission or legal compliance. Some states let the notary choose the technology for an electronic notarial act; others require registration, approved technology, an electronic seal, or an electronic journal. Please confirm what your state requires before using StampInk for an electronic notarial act.
Yes. StampInk lets you import a standard digital certificate (.p12 or .pfx) that you obtain from your own provider and use it to digitally sign a finished document, in addition to your visual signature and stamp. You choose your own certificate and provider, and you remain responsible for confirming what your state or the recipient requires.
Your saved signatures, initials, stamp, and digital certificate are encrypted in your browser with your vault password before they're stored on your device. If you import a digital certificate (.p12 or .pfx), the file and its file password are encrypted together under that same vault password, and signing happens entirely in your browser — your certificate and private key are never sent to us. Only the certificate's name, issuer, and expiration date are kept unencrypted, so StampInk can show them without unlocking. The vault locks again whenever you reload the page. You can also choose to unlock the vault with a hardware security key (such as a YubiKey) instead of the password, or require both; the key's secret never leaves the key and nothing is sent to us. We can't recover a lost key either, so register a backup key. The password never leaves your device and we can't recover it — if you forget it, you reset the vault, which also removes your certificate, and save or import everything again. You can remove your certificate from the device at any time. The certificate quick-insert slots are not password-protected, so keep your device locked.
No — it actually extends it. When you connect Google Drive, your file transfers directly between your browser and your own Google account. It never touches StampInk's servers, same as when you open a file from your device. We don't have a cloud — we just connect to yours.
Yes. JPG, PNG, BMP, and WEBP photos are converted automatically to a centered, Letter-size PDF page — no separate conversion step, and the photo never leaves your browser. HEIC, the default on many iPhones, isn't supported yet — switch to Most Compatible in your phone's camera settings, or share the photo as a JPEG first.
Current versions of Chrome, Firefox, Edge, and Safari on Windows, macOS, and Linux, plus Chrome and Firefox on Android and Safari and Chrome on iPad and iPhone. Touch and stylus input are supported. We recommend keeping your browser up to date.
Yes. StampInk flattens all annotations directly into the page content before saving — they become part of the document itself, not a separate layer, so they print correctly in every PDF viewer and printer.
Yes, once loaded. StampInk runs entirely in the browser. After the page loads, you can open PDFs from your device, mark them up, and save without a connection. License validation requires a brief online check on first activation.
Not at this time. StampInk is licensed to individuals — one seat per person, up to 3 devices each.
