Documents lets you add links to the text in PDF files. You can link to a webpage or a particular page in the same PDF document.

1. Open a document.
2. On the top toolbar, select Edit PDF.
3. Tap Link .
4. Select some text or an area to add a link.
5. In a pop-up menu, tap Destination.
6. To link to a particular page in the current file, select the To Page tab.
7. Enter the page number. You can also use the target picker  or the thumbnails mode to select the needed page. Enter the destination URL.
8. To link to a webpage, select the To Web tab.

1. Open a PDF file and select the Edit tab.
2. Tap the link you want to edit.
3. Change the link destination. Once done, tap the blank space to save the changes. When finished working with links, tap Edit at the top to exit the mode.

When you add a link to a particular area of the document, it’s not visible and opens when you click the area. Documents can highlight all your links with a light blue color to make them easier to notice. To do so, open the Documents Settings > PDF Viewer, and enable the Highlight links toggle.

1. Open a file.
2. Select Edit PDF on the top toolbar.
3. Choose Link .
4. Tap the link you want to remove. 
5. In a pop-up menu, select Delete.