Overview
A scanned PDF often contains images of pages, while a searchable PDF contains readable text information that software can search, select, and sometimes copy.
Why this matters
Knowing the difference helps you decide whether OCR is useful for notes, records, books, forms, and scanned documents.
What is a scanned PDF?
A scanned PDF is created from camera or scanner images. It may look like a normal document, but its visible words may not be actual selectable text.
If you cannot select a word or use search successfully, the PDF may only contain page images.
What is a searchable PDF?
A searchable PDF includes a text layer that allows search tools to find recognised words. It may be created directly from a digital document or by applying OCR to a scan.
Searchable text makes long documents easier to navigate, especially for students, offices, and archived records.
Important accuracy note
OCR-created searchable text can include mistakes, particularly with handwriting, low-quality scans, tables, stamps, and unusual fonts.
Use the visible original page as the reference for important information.
How to do it with PDFClan
- 1
Try selecting or searching text in your PDF.
- 2
Use OCR if the PDF is image-only.
- 3
Download the searchable copy.
- 4
Test search with known words.
- 5
Check important content against the visible page.
Useful tips
- Keep original scans for reference.
- OCR works best on clean typed pages.
- Do not rely on OCR alone for names or numbers.
- Use searchable PDFs for easier study and record management.
Important note
Always review downloaded documents before submitting, printing, signing, or sharing important files. Complex formatting, scanned pages, images, fonts, or document protection can affect processing results.