Your browser is more powerful than you think: Modify Words in PDF in Mozilla Firefox For Free
Drop document here to upload
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
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:
Site could be more mobile friendly. I'm still learning but so far it has done exactly what I needed and greatly improved my ability to get the docs back I send.
2018-07-14
I think your site is well designed and has substantial potential. But being unfamiliar with all the choices, my initial effort at using your site took a little longer that I had hoped it would. But that is a minor critique. i'll do more exploring at a later date.
2018-09-26
Works pretty awesome.
I edit pdfs on the regular using this software and it's very fast and easy.
It's very easy to edit pdfs. I have to edit multiple pdfs and I use this software. It's very beginner friendly and its a simple tutorial to show you exactly how to edit the files.
When you edit the text it's never the same font as the original pdf so it's very noticeable. If that's not a problem to you then you'll love this software.
2019-11-08
Great Value! A Must Have!
PDF Filler is one software that's worth so much more than what I paid for. I work in 3 different industries- Staffing, Construction and Real Estate and this software has become a necessity in everyday document preparation. It saves so much time and money. No need to subscribe to expensive Adobe editing software. Every time I show how this software works to friends and colleagues, they are amazed. I wish I had known about PDF Filler long time ago. Thank you!
Ease of use and integration with Sign Now.
The dashboard could use a bit more organization.
2019-09-18
Say yes to PDFfiller.
I was able to take a 30+ page PDF file, highlight areas of significance, add sticky notes and/or note boxes where I needed to remember a particular point in the lengthy document filled with legal jargon. Which made things SO much easier for me. Although I have listed a few things that I wish were different, overall the product is a great one. I had one difficult experience with a file, but otherwise everything has been amazing. I would absolutely recommend PDFfiller to anyone needing the tools it offers.
I had never used a PDF editor before. Simply due to the fact that I had a hard time finding one that wasn't trying to charge me a bunch of money up front. PDFfiller gave me a free 30-day trial. Which is an instant gold star in my books. Aside from the willingness to let it's potential customers try the product out, the product is surprisingly easy to navigate through, and I was able to download a copy of my final product free with the trial.
There are two things that I would change if I could. The first thing that I did not care for is honestly just one of those particulars that I would have like to have the option of. That being that the only highlighting option is yellow. While this is not really a big deal, it would be really nice to have the option to select different highlighting options (pink,green,orange,blue,etc.). As a college student, I handle a LOT of PDF files on a weekly basis. Anything from a single page reference list, to a PDF copy of a book that consists of hundreds of pages. For me, color coding highlighted areas makes research points easier to decipher and organize according to relevance to one another. The one thing that I noticed was a bit of a headache to deal with. I uploaded a file that needed updating. I selected a entry point that needed to be changed, and the font size automatically changed from an 8.5 to a 9. I selected the "text size down" option, and it made it a size 8. There is no option to size it back to an 8.5. This created an abnormal look to the line of text, and one or more words were different in size. I would have to go through and individually adjust everything to the same size. This may be a subtle difference in size, but as a Graduate student, these things matter in the grading process.
2019-09-16
I am using it time to time for to fill the pdf. I got this because IRS fillable from will not let me
I have used IRS form like 1099 and 1096 and other forms.
Easy to move PDF and update. Also I can save filled PDF to my folder. I really like the filled and sign.
2017-11-14
Despite having some difficulties with…
Despite having some difficulties with the payment of the subscription, the service was fast and effective. I have to verify with my bank the reason for the unsuccessful transaction.
2022-07-06
The only problem is having to share my…
The only problem is having to share my feedback right in the middle of doing my work. Otherwise, great product!!
2021-12-06
I am a very very episodic PDF user and…
I am a very very episodic PDF user and the small try out price I paid to use this program was like buying gold at $25 an ounce. It saved me sooo much time. If I had a regular need I would glady pay the annual fee this program is awespme
2021-06-05
Modify Words in PDF in Mozilla Firefox
You can easily edit words in PDF files directly from Mozilla Firefox. This feature caters to your needs when you require quick and efficient modifications without switching between multiple applications.
Key Features
Edit text directly within PDF documents
User-friendly interface for seamless navigation
Supports various PDF formats and sizes
Instant saving of changes
Access from any device using Firefox
Potential Use Cases and Benefits
Revise business reports or presentations on the go
Update contracts or agreements swiftly
Create personalized notes or annotations for study materials
Correct errors in important documents before sharing
Collaborate with team members by making real-time edits
This feature solves your problem of limited editing options in traditional PDF viewers. By allowing you to modify text directly in Firefox, it saves you time and enhances your efficiency. Whether you are a student, professional, or casual user, you can enjoy the flexibility and convenience of quick edits without hassle.
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
Can I annotate a PDF in Firefox?
Right-click a PDF file in Explorer to select Open with. Choose to open a PDF file in Firefox to view it in that browser. Now you should see new Add FreeText Annotation and Add Ink Annotation buttons on the Firefox PDF viewer's toolbar.
Can Firefox handle PDF files?
Firefox includes a built-in PDF viewer to display PDF files inside the browser window.
Does Firefox have a free PDF editor?
Mozilla is about to make a built-in PDF Reader in Firefox, PDF. js even better with PDF Editing capability. What this means is users can able to annotate PDFs, they can write text, draw with ink, and further can save the PDF. The PDF editing feature is available in Firefox, here is how you can enable it right now.
Can you edit a PDF in Firefox?
The PDF Viewer in Firefox doesn't allow for editing a PDF file, especially one that is online. To edit a PDF file you would need to download and save the PDF file and then use an external PDF application or editor to edit that file.
Video instructions on how to Modify Words in PDF on Mozilla Firefox
#1 usability according to G2
Try the PDF solution that respects your time.