Home
Functionality index

Your browser is more powerful than you think: Add Stamp to PDF in Mozilla Firefox For Free

Drop document here to upload

Select from device

Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT

Note: Integration described on this webpage may temporarily not be available.

0

Forms filled

0

Forms signed

0

Forms sent

Discover the simplicity of processing PDFs online

Upload your document in seconds

Fill out, edit, or eSign your PDF hassle-free

Download, export, or share your edited file instantly

Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support

Every PDF tool you need to get documents
done paper-free

Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.

Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.

Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.

Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.

Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.

Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+

users worldwide

4.6/5

average user rating

4M

PDFs edited per month

9 min

average to create and edit a PDF

Join 64+ million people using paperless workflows to drive productivity and cut costs

Start free trial

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:

Read more reviews

So far, so good. I love the fact that, before I paid--my documents were always saved and not lost. So that later, when I was ready to pay, I didn't have to start over. That was awesome.

CAnne

2017-05-22

So far it works great! There's a bit of a learning curve, but I was able to chat with a support rep even though it was late at night. He helped explain how I could achieve my goals for our Robotics team engineering notebook forms.

Jen D

2018-08-16

I have only used it to get the 1500 form used in billing. I like that you can save your info. You can save your documents and print them. It is easy to use. I like the ability to fax and mail from the site. I have not used it yet to develop a form. I hope to do so before the New Year. It is nice to be able to mail and fax from the site.

Diane O.

2017-11-24

Fantastic customer service For some reason I needed this and only once. I got the free trial and then forgot all about it until $115.00 was collected from my account, shock horror. All I can say is you have fantastic customer service, I explained my situation and a refund was issued that same day. Both friendly and speedy. Ace by name and by character, much appreciated. 1 star deducted as I would have liked a reminder email when the free trial was coming to an end.

Sam

2024-09-22

I have used PDF filler to change dates on my job seeking paperwork. I use PDF filler to fill in work forms. I love that I can get my signature easily, and ask others to sign forms! This is great for school paperwork.

Teresa R

2024-04-30

Very happy been searching for an easy… Very happy been searching for an easy to use PD filler for a long time - bit expensive in comparison - but it better in comparison also.

Terry Edwards

2021-11-19

What do you like best? LO FACIL QUE ES EDITAR LOS DOCUMENTOS PARA PODER TRABAJAR MEJOR Y PODER SOLUCIONAR LOS PROBLEMAS MAS RAPIDO What do you dislike? NO ME DISGUSTA NADA AL CONTRATRIO ES MUY FACIL DE USAR Y LA EXPERIANCIA ES SUPER BUENA Recommendations to others considering the product: LLEVO 2 AÑOS USANDO ESTA APLICACION Y ES LA MEJOR QUE HE ENCONTRADO PARA PODER EDITAR MIS DOCUMENTOS POR LO QUE LA RECOMIENDO AMPLIAMENTE POR TODO LO FACIL QUE ES USARLA TRABAJAR CON ELLA LOS DOCUMENTOS QUESAN SUPER BIEN Y SIN PROBLEMAS AL GUARDAR LOS DOCUMENTOS Y CUANDO NO ENCUENTRO ALGUINO SE GUARDAN AUTOMATICAMENTE What problems are you solving with the product? What benefits have you realized? RESULVO TODOS LOS PROBELMAS CON MIS DOCUMENTOS AL NO TENER PROBLEMA EN EDITAR

Administrator in Construction

2021-04-19

The program is easy to use and powerful, and I had a great customer experience with their support team. I was stressed and they left me satisfied. 10/10 would recommend this to anyone in business.

Dom

2020-07-15

I looked at some pdf that were not… I looked at some pdf that were not editable until I found PDFiller. Great experience and so useful in my tax business.

Roger Lubiens

2025-03-11

Add Stamp to PDF in Mozilla Firefox effectively

For many people, an internet browser is a primary work tool. Minimizing their attention span to just one device, most of their routine tasks can be completed without installing additional software. However, not so many online services required for a routine paperwork can boast about their quality. And finding a solution that’s worth your time and efforts can be difficult.

pdfFiller is a leading platform for editing, storing, and sharing documents online, without leaving a browser. It combines multiple tools with a user-friendly interface and high-level security features that can be quickly utilized right from the browser. If you want to Add Stamp to PDF in Mozilla Firefox, consider taking advantage of pdfFiller.

pdfFiller is a time saver for individuals and businesses on that page. Simply speaking, time saving equals money saving. Stop using multiple solutions and make the most from one, fully-featured PDF editor. Choosing pdfFiller equals choosing sleek document workflows and usefulness.

What's the difference between our platform and our competitors? Take a look at the list below to learn more:

01

Additional authentication requests. Ask a recipient to attach their photo or confirm their identity with a phone number.

02

Advanced capabilities. Access multiple professional tools for editing text and adding new objects online.

03

Editing tool. Make significant changes to documents by utilizing the Rewrite option that allows to modify a massive amount of information.

04

Page management. Reorder pages, add new, and rotate or delete existing ones using the Rearrange option.

05

Interactive elements. Streamline the process of collecting data by inserting customizable fillable fields, checkboxes, and dropdowns.

06

Legally-binding electronic signature. Approve documents and send them for signing without leaving the browser window.

These and many other helpful options like the feature to Add Stamp to PDF in Mozilla Firefox are coming with pdfFiller out of the box. Don't waste time and effort on using limited capabilities. Start dealing with files in Portable Document Format like a pro!

Add Stamp to PDF in Mozilla Firefox

Introducing the Add Stamp to PDF feature in Mozilla Firefox. This tool allows you to easily and effectively mark your PDF documents, enhancing both your workflow and document clarity.

Key Features

Simple drag-and-drop interface for ease of use

Multiple stamp options including text, images, and colors

Ability to resize and position stamps as needed

Save and reuse custom stamps for future documents

Works seamlessly within the Firefox browser

Potential Use Cases and Benefits

Perfect for annotating important documents in a clear manner

Ideal for adding approval signatures or notes to PDF files

Great for teachers marking assignments or providing feedback

Useful for legal professionals needing to stamp documents with claims

Supports remote work by simplifying document review and collaboration

With the Add Stamp to PDF feature, you can solve the challenge of unclear communication in document sharing. This tool helps you convey your message with precision, ensuring that your notes and approvals stand out. You can enhance collaboration and reduce misunderstandings, allowing you to focus on what truly matters.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.

What if I have more questions?

Contact Support

How do I add a stamp to a PDF online?

How to Add Watermarks or stamps to PDF files? Upload your PDF document into our Watermark software. Select the Watermark type, e.g - 'Image watermark ' or 'text watermark'. Adjust the size and position of the image or text. Choose the color and orientation of the watermark image or text, and save it.

How do I add a stamp to a PDF?

Do one of the following: Choose Tools > Stamp > Custom Stamps. Choose Tools > Comment > Stamps > Custom Stamps > Manage Stamps.

How do I insert a stamp into a PDF?