Learn how to enable Adobe Reader users to fill out and save PDF forms. You can’t fill out or save a PDF how to fill out application on pdf in Adobe Reader. To resolve this issue, use one of the following solutions.
Enable the Typewriter tool on the PDF. You must have at least one Acrobat Professional client installed. Open the PDF in Acrobat Professional. Enable Typewriter tool in Adobe Reader.
Fill out the PDF form. Save the resulting PDF to your computer. Typewriter to access the Typewriter tool. Use the Typewriter tool to type characters on top of the PDF content. The Typewriter tool is only available for static PDF files, not for dynamic files, as it is part of the commenting functionality.