Why does my PDF look fine but not read aloud?
A PDF can look like a page of text and still contain only a picture of that page. A screen reader needs text it can access, not just letters visible in an image. This often happens with scanned notes, forms, and books.
Start with a simple check
Open the PDF in a reader you already use. Try to select a sentence, search for a word you can see, or navigate through its text with your screen reader. If none of these works, the page may be an image rather than selectable text. This is a clue, not a diagnosis: a PDF can have other accessibility problems too.
What OCR can and cannot fix
Optical character recognition, or OCR, tries to turn writing in an image into machine-readable text. After OCR, check the result against the original page, especially names, numbers, Urdu text, and tables. A searchable file is not automatically a well-structured one. Headings, reading order, image descriptions, and form labels also matter when someone needs to navigate rather than merely hear words.
If you are sharing a PDF
When you can, export the original document as a tagged, accessible PDF instead of scanning printed pages. Give it a useful title and real headings. If a scan is unavoidable, run OCR, check the text, and ask someone who uses a screen reader to try the file before you send it.
Reshu PDF Reader is a public Android pre-release from SR Studio. The current public download is v0.3.5 for Android 6.0 or later. It reads PDF text aloud and supports OCR for scanned pages, but OCR can be wrong and file structure still matters. It is free, with no ads or paid features. See the official download and installation page for the current build and limits.