Add Watermark to PDF and Lock PDF for free
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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:
I was in a total jam and needed forms right away. I was so afraid my only option was to type all these required forms and then have to write in the answers with a pen. It would have taken me days to complete! When I discovered PDFfiller online it was like my guardian angel had guided me to the site! The user friendly site was easy to navagate and had easy to understand instructions. I'm very much impressed with your product and when I need another PDF form, I most certainly will use your product again. Thank you so much!
2017-01-05
What do you like best?
I love the program as a homeless case manager, I can review information with clients, send to them for review, and signature from my office
What do you dislike?
It needs a desktop application for easier access vs going to the website all the time.
What problems are you solving with the product? What benefits have you realized?
decreasing my travel, having access to documents when I need them in the PDF website, and access to cloud networks
I love the program as a homeless case manager, I can review information with clients, send to them for review, and signature from my office
What do you dislike?
It needs a desktop application for easier access vs going to the website all the time.
What problems are you solving with the product? What benefits have you realized?
decreasing my travel, having access to documents when I need them in the PDF website, and access to cloud networks
2019-05-28
Great for filling paper on the go
What I liked the most of this software is that it is great for filling out paper work online
What I liked the least is not many options to choose from as in where to fill out.
2018-09-20
An Efficient Time Saver
It is easy to update the documents with some features of a Word Document.
However, there should be more variety in the fonts and I wish it didn't change the original/all font when I edit part of it.
2022-05-07
I'M VERY SATISFIED BY USING THIS TOOL…
I'M VERY SATISFIED BY USING THIS TOOL HELPED ME ALOT I RECOMEND IT TO EVERYONE AS A SPECIAL TOOLI REALLY APRECIATED USING ITTHANK YOU
2021-06-11
Excellent Service
I did the 30 day trial period and was very satisfied with the process.I used the product for about 10 different documents within a 2 day period. I forgot about the trial period and was charged for an annual subscription and was emailed the confirmation. I went online and requested to cancel the subscription due to not needing the product and received the cancellation with 5 minutes, very satisfied.
2021-05-27
User friendly and functional as well as stable
Just trying this out , and it is one of the best PDF editors I have ever used.User friendly and functional as well as stable. A very valuable tool.
2020-05-20
It's great
It's great. Not as good as adobe in the areas of text replacement or image addition. It is also not as sophisticated for selection mechanisms. If you need to fill in documents or create PDFs this is a solid application that can do the stuff that you will need quickly and cheaply.
2020-05-13
Top notch customer service!
Accidentally subscribed for an annual subscription so was shocked to see $118 come out of my account. I got in touch with the customer support team and they couldn’t have been more helpful. They refunded the money and cancelled my subscription immediately. 5* customer service - well done PDFFiller!
2025-05-02
Add Watermark to PDF and Lock PDF Features
Ensure your documents maintain their integrity and authenticity with our Add Watermark to PDF and Lock PDF features. You can effortlessly add a watermark to your PDF files and secure them against unauthorized changes. This combination not only protects your work but also enhances your brand visibility.
Key Features
Easily add custom watermarks to your PDFs for branding
Lock PDFs to prevent editing or copying
Support for text, image, and logo watermarks
User-friendly interface for quick usage
Compatible with various PDF formats
Potential Use Cases and Benefits
Ideal for businesses wanting to brand their documents
Great for freelancers protecting their designs and work
Useful for legal documents that require security
Perfect for informative PDFs that need consistent messaging
Beneficial for educators distributing course materials
By using these features, you can solve the problem of document misuse and unauthorized changes. Secure your work with an effective watermark, and lock your PDF files for peace of mind. Let your creativity flourish without fear of compromise.
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 watermark to a PDF for free?
Step 1: Select your PDF document.
Step 2: Add Text Watermark. Click the Add Text button at the top of the PDF page.
Step 3: Change text size, rotation and location on page.
Step 4: Change text color, transparency and font family.
How do I add a watermark to a PDF document?
Insert Watermark into PDF After opening the document, go to the “Edit” option and select “Watermark”, and then click “New Watermark” from the submenu. You will be presented with a new window. Choose whether you would like a text, file, or image watermark, and specify the watermark location.
Add Watermark to PDF and Lock PDF Video Review
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