Your browser is more powerful than you think: Lock PDF Files in Mozilla Firefox Gratuito
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:
What do you like best?
I like how easy it is to take a PDF and be able to type what I need to, change colors and fonts
What do you dislike?
I wish that the erase tool would be able to go in different directions, not just left and right but to be able to use it more freely to erase easier.
What problems are you solving with the product? What benefits have you realized?
benefit in using this for my business is keeping documents clean and not having to print them out hand write on them scan them back in and email it, I can do it all in PDFfiller and keeps my documents clean, and is a lot easier.
I like how easy it is to take a PDF and be able to type what I need to, change colors and fonts
What do you dislike?
I wish that the erase tool would be able to go in different directions, not just left and right but to be able to use it more freely to erase easier.
What problems are you solving with the product? What benefits have you realized?
benefit in using this for my business is keeping documents clean and not having to print them out hand write on them scan them back in and email it, I can do it all in PDFfiller and keeps my documents clean, and is a lot easier.
2020-02-05
GREAT PRODUCT
This program is easier to navigate than the Adobe PDF program. I have used it for many forms that are not fillable and it looks a million times better than my handwriting!!
2024-11-18
Useful application. Efficient Customer service
Useful application. I also had an issue with the payment and their customer support helped me out very quickly. Impressive service, thank you!
2023-05-07
Thought I canceled the subscription and I may not have completed the process. After contacting support I was refunded and canceled immediately. Great company
2022-12-06
PDF filler is a game changer in how I…
PDF filler is a game changer in how I want to show up in the workplace as a professional. The website is helpful, easy to navigate, and very affordable. There isn't a document type that I need that I can't just type in search and locate. Thank you!
2022-09-02
Due to mental illness I have severe limitations with sequencing, prioritizing, staying on track, paying attention to detail, and decreased information processing speed, just to name a few. I usually need more time to process instructions So when I first started playing/exploring this application I was really intimidated. I thought I was going to have to cancel the the trial, give up and cancel but to my surprise I'm starting to get the hang of things and I think I really like it. The capabilities of this application seam endless. I'm actually quite amazed I've never seen anything like it. Hopefully after watching a few webinars/training sessions I'll be able to learn even more. I'm excited and even more motivated because results I have exceeded my expectations.
2022-04-13
I've used this software before, but I find Pdf Filler a bit better for my use. I need to learn the software better, because if it continues to help in my work I will be a loyal client.
2022-02-19
A great online software
A great online software, easily linkable with Google Drive. You can modify as far as you want your documents, make signature and so much modifications.
Really useful and safe for any documents.
2021-11-17
I would recommend this site
I have found the site easy to use and have not any problems with it. If I hit a snag with the functions I contact the team and they always sort it out for me. It certainly has made my work more efficient now that I am working from home.
2020-11-26
Lock PDF Files in Mozilla Firefox
Protect your sensitive documents with the Lock PDF Files feature in Mozilla Firefox. This tool adds an extra layer of security, ensuring that your PDF files remain confidential and accessible only to authorized users.
Key Features
Easy locking and unlocking of PDF files
User-friendly interface within Mozilla Firefox
Support for multiple PDF files at once
Customizable password protection
Automatic encryption for added security
Potential Use Cases and Benefits
Secure personal documents, such as tax forms and medical records
Protect business proposals and sensitive client information
Share password-protected PDFs for controlled access
Safeguard educational resources for teachers and students
The Lock PDF Files feature effectively solves your problem of document security. By allowing you to set passwords and encrypt files, you gain peace of mind knowing that your important information remains protected. With just a few clicks, you can ensure that only the right people have access to your files, enhancing your overall data security.
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 password protect a PDF in Firefox?
Open the PDF and choose Tools > Protection > Encrypt > Encrypt with Password 6. If you receive a prompt, click Yes to change the security. 7. Select Require A Password To Open The Document, then type the password in the corresponding field.
Video instructions on how to Lock PDF Files on Mozilla Firefox
#1 usability according to G2
Try the PDF solution that respects your time.