How to Recognize an Accessible PDF
An accessible PDF document is both searchable and selectable.
The simplest way to check a PDF is to try to click and drag to select words. If you can select the text, then the PDF will be readable and searchable by screen-reader technologies.
If you cannot select anything, then the PDF is most likely an image and it not accessible.
How to Create an Accessible PDF
From any Microsoft Office product (Word, Excel, PowerPoint, etc.), use the Save As function.
In the Save as Type list, select PDF as the file type.
Avoid using the "Print as PDF" function