The easiest way to sign and stamp documents

Use a real pen and paper to create your signature, then apply your signatureit to digital documents — all without leaving your chair.

Stamper has transformed our authorisation workflow - two clicks and every page is digitally stamped! We're saving time, boosting productivity, and protecting the environment.

– David Garcia, Jackson Aerospace
Stamper - The easiest way to sign & stamp documents | Product Hunt

Say goodbye to printing & scanning

Add text annotations, today's date, and your signature directly to PDFs in the Stamper desktop app for Windows and Mac.

Deliver on your ESG goals

Reducing printer and scanner use doesn't just save you time and money, it also means less paper and electricity go to waste helping contribute to your organisation's ESG aims.

Why Stamper?

Developed to solve the problems of the insurance industry, where underwriters frequently need to apply button stamps and scratches to every page of a document, Stamper now helps people across a wide range of industries.

Underwriters at TMK use Stamper to quickly apply indelible stamps to PDF contracts and treaties, something they weren't able to achieve with tools like Adobe Acrobat.

Compare Plans

Email us to arrange a free trial for your company, syndicate, or managing agency today.





Price Free $9/month Contact Contact
Unlimited text entries
Number of signatures 1
Number of pages that can be stamped simultaneously 1
Advanced multi-page stamping
Insurance syndicate and other custom stamps
Consolidated invoicing
Site-wide licensing
Support for Citrix
Handle password protected PDFs
Support Email, 7 days Email, 1 day Phone
Admin panel
Two-factor authentication (2FA)
Single Sign-On (SSO)


Unlimited text entries




Page stamped at a time


Unlimited text entries
Unlimited signatures
Stamp unlimited pages with a single click
Complex multi-page stamping
7-day email support


Get in Touch

Everything in Premium plus:

Insurance Syndicate and other custom stamps
Consolidated invoicing
Site-wide licensing
Support for Citrix
1-day email support


Get in Touch

Everything in Business plus:

Dedicated admin panel
Two-factor auth (2FA)
Single sign-on (SSO)
Phone based support

Adding a new signature?
Easy as ABC


Download Stamper

For Mobile

Capture your signature

For Desktop

Sign & stamp your docs

Getting Started

We've created a short video to help you get up and running with Stamper:

Frequently Asked Questions

I've generated a 6-digit signature code on my phone using Stamper mobile, now what?

Download and install Stamper desktop, open the app and click Add Stamp:

Enter the 6-digit code and click OK:

Congrats – you're all set to add your new signature to PDFs!

Do I have to enter the code every time I want to use my signature?

No. Once you have entered the code in Stamper Desktop, your signature will remain available for you to use (even if you close and re-open the app).

Why didn't my code work?

The code you generate using Stamper Mobile is valid for 10 minutes. After 10 minutes, you will need to capture your signature again to generate a new code.

Ok, I've loaded a stamp – how do I stamp things?

Start Stamper for desktop if it's not already running, click Open File and browse to the location of a PDF on your computer:

Choose your signature from the dropdown then click anywhere in the PDF to apply your signature:

If you have Premium or above right-click to stamp multiple pages.

How do I stamp the current date?

Choose the Date stamp in the stamp menu in the Stamper toolbar, then click or right click anywhere in the document to add the current date.

How do I stamp custom text?

Type your text into the stamp menu in Stamper, then click or right click anywhere in the document to add your text.

How many signatures can I add?

The Basic plan is limited to 1 signature, the Premium plan and above allow you to add unlimited signatures.

What color ink can I use?

At this time, Stamper only supports black. Dreaming of colored inks? Let us know you're interested and we'll see if we can hurry it up:

Can I initial every page in a 500-page document?

Yes! The Stamper Premium plan and above allow you to do multi-page stamping.

Just right-click and choose Stamp all pages or Stamp multiple pages then take the rest of the day off – we won't tell 😉

Do I need both Stamper Mobile and Stamper Desktop?

Yes. Stamper Mobile lets you capture signatures and Stamper Desktop applies signatures to PDFs.

Why do I need the Stamper Mobile App?

You use the Stamper Mobile app to take a photo of your signature. It gives you a 6-digit code that you enter into the Stamper Desktop app, which allows you to digitally sign you documents.

Why do I need the Stamper Desktop App?

You use the Stamper Desktop app to digitally sign your documents. After you take a photo of your signature using the Stamper Mobile app, enter the 6-digit code into the Stamper Desktop app to add your signature.

Can I install Stamper Desktop on more than one computer?

Yes! You can install Stamper Desktop on as many computers as you like. You will need to re-enter your 6-digit signature code on each computer.

Stamper – the easiest way to sign and stamp documents!

Brought to you by the team at Cactus

Winners of InternationalInt'l Innovation of the Year
Lloyd's Lab Alumni