Add Watermark to PDF and Merge PDF for Computer For Free

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Fill out, edit, or eSign your PDF hassle-free
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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Every PDF tool you need to get documents
done paper-free

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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.
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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.
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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.
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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.
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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.
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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:
Overall a great product. My only qualm with the software is the picture quality of the pages displayed when a user is selecting pages to "save as." The images are not clear enough for anyone to distinguish pages. A zoom function would be much appreciated.
Brian H
2015-12-06
What do you like best?
has all the forms i need and stores copies I have created for me
What do you dislike?
There is not much I dislike about this product
What problems are you solving with the product? What benefits have you realized?
easier billing
Lawrence Fleischman
2019-05-21
The interface is reasonably intuitive… The interface is reasonably intuitive and everything works right, as far as I can tell. One note: To move a field, select and hold the symbol for move in the box just above the field, not the box itself. In other words, the symbol is the handle.
Robert Overton
2019-02-19
So easy to use and meets all my expectations Knowing that it's there when I need it. I only use it when I get a new tenant. It also saves my information so I don't have to enter it each time. I can find any form that I need. I own a small rental business and I am able to fill out my lease and Pd filler saves it and I can fill out the next with just changing the new lease's name and address.
Kathryn H.
2017-11-15
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!
Andrea Randle
2022-09-02
An Affordable and Easy Solution for Businesses Handling E-Signatures As an inexpensive and simple tool for signing documents digitally, pdfFiller is unrivaled in value compared to other solutions offered by Adobe and others. Our company uses pdfFiller constantly to compose property deeds for our owners. We also prepare a variety of documents for our Board of Directors to sign conveniently since they are not onsite always. It does cost more money in monthly subscription fees to have faster access to customer service. At the first time we experienced a technical problem and needed a question answered we did not have the service tier that afforded same-day replies from customer support. This was an inconvenience, but we have since upgraded our services.
Aaron C.
2022-08-24
It takes me a while to understand It takes me a while to understand, I had my problems trying to understand the samples of where to find things, I did not know what a hub icon was,
Susie Honeycutt
2022-03-11
Amazing customer service! Amazing customer service. Responded same day when I had a question and was super polite and friendly in helping me out. Also followed up to make sure everything worked out. Couldn’t be happier.
Michelle
2021-02-26
Thanks for the one-time use You acknowledged that people need a one-time use for. While this site was great, I don't need it in the near future. You made cancelling the subscription easy and not a giant maze of site's you need to navigate through.
Jesse
2025-03-10

Add Watermark to PDF and Merge PDF for Computer

Enhance your PDF management with our Add Watermark to PDF and Merge PDF feature. This tool empowers you to customize, combine, and secure your documents effortlessly.

Key Features

Easily add custom watermarks to your PDFs for branding or copyright purposes
Seamlessly merge multiple PDF files into a single document
Maintain high-quality output with no loss of formatting
User-friendly interface for quick and efficient operations
Compatible with various operating systems and devices

Potential Use Cases and Benefits

Protect your intellectual property by adding watermarks to sensitive documents
Combine reports, presentations, and other files for cleaner organization
Enhance your professional image with branded watermarks in client communications
Save time by merging multiple documents into one for easier sharing and printing
Simplify your workflow by managing PDF files in a single tool

This feature solves common challenges in document management. Whether you need to safeguard your work, streamline file sharing, or create professional presentations, our tool provides an effective solution. By allowing you to add watermarks and merge documents easily, you gain control over your PDFs, ensuring they serve your purpose effectively.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

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
Click “Add directories to list” icon to add all files in a folder to the list together; Click “Watermark→Create→New Text Watermark” to enter into “Add Text Watermark” interface, define name, then click “Macro” button to choose unique data for different PDF copies;
To stamp all pages in a document at once, place your stamp on one page, then choose Edit Selection Duplicate to All Pages.
Step 1: Open the PDF File. Step 2: Click on “Watermark” Step 3: Select the Logo File to Be Added to the PDF. Step 4: Set the Position and Rotation of the Logo. Step 5: Set the Scale and Page Range of the Logo. Insert Logo in PDF Successfully. Step 7: Save the Changes.
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.
Click “Add directories to list” icon to add all files in a folder to the list together; Click “Watermark→Create→New Text Watermark” to enter into “Add Text Watermark” interface, define name, then click “Macro” button to choose unique data for different PDF copies;

How to Add Watermark to PDF and Merge PDF for Computer - video instructions

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