PDF files have the option to let you share and ... Click, or click and drag, on your document to add a box with a colored border, and type your observations in it. Choose the Text Callout tool ...

The free version of Foxit PDF Reader lets you add a text box to your PDF files. To do this, follow the steps given below: After doing this, click anywhere on your PDF file. A text box will appear ...

If you own a Samsung Galaxy phone, you can use the preinstalled My Files app to add a PDF shortcut to your home screen. Open your file manager or Files app and locate the PDF file. Tap on the ...