Last updated on
Jan 16, 2026
Encrypt and Add Watermark to PDF for free
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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I love this tool
I love this tool. I shared it with my mom who still has to fax things and I did not want her leaving her home to fax at other businesses. I think a video on how to create more fillable boxes would be helpful. Although I figured it out, it took me about 30 minutes. I can imagine for even less tech savvy people it could take longer.
2020-04-15
This was pretty easy to use once I…
This was pretty easy to use once I started. I only needed it for one form and do not edit a lot of PDF files normally.
2021-10-31
This program is extremely valueable to…
This program is extremely valueable to me as a real estate agent. I cannot be as effective without it. It is a must for me, thank you.
2021-08-30
EXCELLENT CUSTOMER SERVICE
Very quick, efficient and courteous customer service. My elderly mother subscribed to this service and couldn't remember why. I explained the situation via emails with Customer Support and they refunded the annual subscription fee after I verified a few details. I really appreciated their understanding and quick response. Now...I have to go unplug my mom's computer. :-)
2021-07-16
I lost a few completed PDF forms before I successfully saved one but overall this website is a great place to work from and one I couldn't have done without
2020-08-21
pdfFiller is user-friendly and the site is easy to...
pdfFiller is user-friendly and the site is easy to navigate. I love the fact that a function stays the same until you change it, eg. a font size and format. However, I would like the option to use all the Fonts that I have installed on my own computer. When a page is duplicated, I'd love it if the 'changes' made to the original using pdfFiller, could also be duplicated rather than simply a duplication of the original document. I also can't seem to find a way to cut and paste text to apply it in a different area of the document, which means that the process of replicating a change is more time-consuming, but this could be my current unfamiliarity with the software. I was impressed that within a couple of hours of use, I was offered the option to attend a webinar to improve my understanding.
2020-07-20
Encrypt and Add Watermark to PDF
Protect your sensitive documents effectively with our Encrypt and Add Watermark to PDF feature. This tool not only secures your files but also brands them for consistent recognition. Enjoy peace of mind knowing your information is safe while ensuring your brand stands out.
Key Features
Strong encryption methods for document security
Customizable watermarks for branding
User-friendly interface for easy navigation
Batch processing for multiple documents at once
Compatibility with various PDF viewers
Potential Use Cases and Benefits
Securely share contracts and agreements
Protect sensitive financial reports
Brand marketing materials with unique watermarks
Safeguard intellectual property in presentations
Maintain confidentiality of personal information
This feature addresses the common issue of document security. By encrypting your PDFs, you prevent unauthorized access and leaks. Additionally, the watermark helps establish ownership and discourages unauthorized use of your documents. You can confidently share files knowing they are both secure and branded.
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?
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How do you add watermark that Cannot be removed?
Detail Behind Mark: The detail of the image behind the mark is crucial.
The Color of the Mark: Ideally, the watermark could contain multiple colors and, if possible match at least some colors in the image, making it more difficult to remove without damaging other elements.
How do I add a watermark to a secured PDF?
Steps to Add Watermark to PDF File Step 1: Run PDF Watermark Tool and add PDF files to the tool, click Next. Step 2: Choose a watermark type and do all the necessary settings. Step 3: Click on Preview to see the view of the PDF page before generating. Step 4: Click on Generate to add watermark to protected PDF file.
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