Need a tool to highlight some texts in your PDF? Here is a list of the 9 best PDF highlighters to help you finish it on a desktop or online.

In this article, you can learn how to get rid of images or text watermarks from PDF files in a free or professional way.

How to insert or add images to a PDF? Here shows you three approaches to do the job with the best PDF editor and online PDF editing apps.

If you want to add bookmarks to PDF to locate specific pages, you can read here to tell you three ways to do the task on Windows and Mac.

Kindle books are not friendly with other digital devices. Therefore, this article tells you 5 ways to download Kindle books to PDF.

Are you looking for a method to add PDF to your Kindle? Learn how to do it with a USB cable, email, and send to the Kindle app here.

Try to add pages to your PDF files? Read this article and find four ways to add pages to a PDF on Windows, Mac, or Online easily.

Try to add pages to your PDF files? Read this article and find four ways to add pages to a PDF on Windows, Mac, or Online easily.

Try to add text and text boxes to PDF. Here we share 3 approaches to apply the text to an existing PDF file on your desktop or online.

To add an interactive link to your PDF document, you have multiple options. Learn the best ways to do it in this step-by-step guide.

How to password protect a PDF for free? Can you set up permission or a password for PDF? Follow the article to find the 5 solutions.

Wish to edit your PDF in InDesign? Here is a guide to help you open a PDF in InDesign, edit, and save the final document to the hard drive.