How to Add Watermark to a PDF Document on Desktop or Online

Last Updated on November 11, 2021 by Tina Clark

There are different ways to lock PDF documents, from password protection to limited file permissions. But you may not fully appreciate what they can. Alternatively, adding a watermark to a PDF is a better way to protect your copyright. You can distribute your information to anyone as well as prevent them from using your files without permission. Another problem is how to do the task. Don’t worry. You can learn more than one way to watermark a PDF in this article.

How to Add Watermark to PDF

Part 1: How to Add Watermark to PDF with PDFEditor

When adding a watermark to a PDF, you may focus on several factors, such as being easy to perform, keeping the quality of the original PDF, and more. From this point, we recommend WidsMob PDFEditor, which integrates a wide range of pro-level PDF editing tools in a way that people can master quickly. Its key features include:

  • Add text or image watermark to PDF documents in three steps.
  • Offer extensive custom options for advanced users.
  • Let you decide the appearance of the watermark.
  • Protect the quality of the original PDF document while watermarking.
  • Provide rich PDF editing tools related to text, image, pages, etc.

All in all, it is the easiest way to add a watermark to a PDF document without damaging quality.

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How to Add Watermark to a PDF on Desktop

Step 1: Import the PDF into PDF editor

Download the best PDF editor from the official website, double-click on the installer file, and follow the on-screen instructions to install it to your computer. Then launch it and add the PDF that you want to protect with a watermark. Here you have three methods, drag and drop the PDF file into the interface, or choose the Open option in the File menu to import the document. Alternatively, you can set the program as the default PDF viewer and double-click on the PDF file to open it directly.

Open Image File PDFEdit

Step 2: Add a watermark to the PDF

After importing the PDF, click the Pages menu on the menu bar to open the Pages toolbar. Then select the Watermark to open the watermark pop-up dialog. Here you can find several custom options. Firstly, decide to add text or image watermark. For a text watermark, set the appearance, such as font, size, color, and more. Then click the OK button and put the text watermark in the correct position. If you want to add an image watermark, load the image from your hard drive, set the custom options, and hit OK. Next, change the watermark position and size.


Step 3: Save the watermarked PDF

Once you add the watermark to one page of the PDF, it will appear in the same position as other pages. If you are not satisfied with it, remove the watermark and re-watermark the PDF. Finally, press the Ctrl + S keys on your keyboard to save the watermarked PDF. If you do not want to replace the original PDF file, save it as a new PDF.

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Part 2: Add Watermark to PDF Online

Web-based apps are always a convenient option to add a watermark to a PDF online. With them, you do not need to install any software on the computer. Web PDF editors also have shortcomings. First of all, you need a great network connection; otherwise, it will freeze when uploading PDF. Plus, most online apps do not allow you to preview the watermark. It means that the text or image may be watermarked incorrectly or with an improper appearance. Online PDF watermark editors usually work in the same way. And we use ilovePDF and PDF24 as the example.

How to Add Watermark to PDF Online with ilovePDF

Step 1: Open the web PDF editor in your browser and click the Select PDF file button to open a PDF file that you want to watermark from your hard drive. Or upload a PDF from your Google Drive or Dropbox.

Step 2: Locate the right side and go to the Place text tab to add a text watermark to the PDF. To add an image watermark, skip to the next step. Type the text into the box under TEXT, select the font, size, and more under Text format. Decide where the watermark locates under POSITION. Then set the TRANSPARENCY, ROTATION, Pages, and Layer of the text watermark based on your wish.

Step 3: Go to the Place image tab on the right side, click ADD IMAGE button to upload the picture from your computer. Next, set the POSITION, TRANSPARENCY, ROTATION, Pages, and Layer simply.

Step 4: Click the Add watermark button to start adding watermark to a PDF. Finally, click the Download PDF with watermark button to get the result PDF file. Alternatively, click the hyperlink icon to share the final PDF via URL or QR code.

Add Watermark with ilovePDF

How to Add Watermark to PDF Online via PDF24

Step 1: If you are looking for a simple way to add a watermark to a PDF online, visit the web app in a browser.

Step 2: Drag and drop the PDF file into the dashed box on the home page. Then write down the text in the Text box, and set Font, Font Size, Color and alpha, Position, Angle, and Space.

Step 3: Click the Add watermark button to begin watermarking the PDF online. Wait for a few minutes and then click the Download button to get the watermarked PDF. Or you can send the final PDF to your email address for downloading later.

Note: Web PDF editors cannot process encrypted PDFs. You have to unlock them with a third-party tool before uploading.



Based on the guide above, you can learn to add a watermark to a PDF on your desktop or online. Sometimes, it is not convenient to install PDF editor software. In such situations, you can utilize a web PDF editor app to watermark your PDF file. If you want to get more tools or advanced features, we suggest you try WidsMob PDFEditor. We hope that our guide is helpful to you.

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