Lock PDF and Add Watermark to PDF for Website Gratis
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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
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users worldwide
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average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
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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 had a little trouble finding the right form for the Post Office EDDM program. First, I got an outdated form which was corrected at the post office. When I complained to customer support, they were very helpful and I was able to access the up-to-date form.
2014-06-25
Excellent program! This service has brought back the professional ability to complete online forms in a typewritten format, as opposed to handwriting. A physician's handwriting is sometimes difficult to read, but with PDF filler, I am able to type the forms, print and have the physician sign where needed.
2015-06-24
Great office tool to use. I used PDFfiller to fill out superannuation and government forms where clarity is desirable.
Very easy and intuitive to use.
2017-11-04
This is the only app I can erase and…
This is the only app I can erase and fill-in easily so I love it. However, the signing function is glitchy so I use Docu or Adobe sign for that. Still, soooo worth it b/c of the Erase and Fill features.
2019-11-27
Very useful to fill PDF and Edit them On the Go.
PDF Filling and operations just got easier. PDFfiller is a good software for regular usage as well.
1. Beautiful UI and Editing features.
2. The export feature is very useful and Smart. PDF to Word Export is just a Jiff.
I faced a few issues with Multi Format and Locked PDF but worked like a charm in Premium Version. Thanks
2018-08-08
Great onboarding, and lifesaving functionality
Lifesaver, amazing and frictionless free sign-up journey. Edited and saved a really important PDF in minutes
2024-08-05
Slight misunderstanding promptly resolved
There was initially a slight misunderstanding, however, I was lucky enough to get Dee again when I reopened the chat. She had thought that I just wanted my subscriptions automatic payments cancelled. Really I wanted the payment stopped and the subscription cancelled. Thankfully she worked up until the last minutes of her shift to help me. She was excellent help!
2020-12-11
Chatted online to cancel and refund $96 that I was charged and I got a pretty friendly guy named Peter! He was sweet and fast! If I needed this particular application again, I would definitely reuse them!!!
2020-05-03
It was free and it only cost me a lil…
It was free and it only cost me a lil over a buck to save to my computer for first time purchase of the 30 day free trial
2025-01-22
Lock PDF and Add Watermark to PDF Feature
Protect your valuable documents with our Lock PDF and Add Watermark to PDF feature. This tool allows you to secure your PDFs while ensuring your brand is visible. It's an easy way to maintain control over your content while sharing it.
Key Features
Password protection to restrict access to your PDFs
Customizable watermarks that promote your brand
User-friendly interface that simplifies the process
Support for various PDF formats
Fast processing to save you time
Potential Use Cases and Benefits
Publish reports or presentations with a professional look
Share sensitive information with locked access
Protect your creative work while distributing it
Send contracts and agreements securely
Promote your brand through visible watermarks
This feature solves the problem of unauthorized access and misuse of your documents. By locking your PDFs, you prevent unwanted viewers from accessing your information. Additionally, watermarks provide a way to advertise your brand, making sure your name stays with your content, even when it's shared. Overall, securing your documents and enhancing your brand visibility has never been easier.
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 put a watermark on a PDF online?
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 online?
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 protect a PDF from being copied online?
Open your PDF.
Go to Protect Tab.
Click Password.
Enter Password.
Select the Printing allowed dropdown.
Select None means to prevent printing.
Select the Changes Allowed dropdown.
Select None -means the highest level of protection.
How do you protect a PDF file from a website?
Go to the post or page that you wish to protect.
Right under the Publish button, change the visibility to Password Protected.
Enter the password and hit Publish.
How to Lock PDF and Add Watermark to PDF for Website - video instructions
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