Check if the document is a scanned PDF document. Check if it is a secured/encrypted PDF document. Use the Rectangle tool to highlight text. Repair or uninstall Adobe Acrobat Reader.

If you want to create a PDF file on your Windows 11/10 laptop or desktop, then it can be done using a third-party PDF Editor software. There are both paid and free PDF Creator software for Windows PC.

The document is actually a simple PDF file but the text boxes are setup to accept basic input from the reader. The creator can leave these boxes open to any text or opt for drop-down lists of ...

In other words, Adobe Reader won't let you add text. What you need is a program that's a little more accommodating, PDF-wise. Try Foxit Reader 4.3, which allows you to add text to any PDF.

The free Adobe Acrobat Reader can easily handle that job. Yes, Adobe’s Acrobat Reader is designed as a PDF viewer, but that doesn’t mean you can’t use it to add certain content to a PDF.

While Windows doesn’t offer a built-in PDF signing feature, there are third-party apps that you can use, such as Adobe Acrobat Reader DC, which is Adobe’s free PDF reader.

If you have Adobe Acrobat, you can use its built-in watermark feature to add a watermark to a PDF file you're editing. Go to the "Document" menu, click "Watermark" and then click "Add." ...