Read or search a PDF
Start with PDF Reader when the document already has searchable text. Its find and selection features depend on the source text layer.
PDF ReaderPDF Analysis and OCR Tools
Before changing a PDF, find out what is actually in it. PDF Reader opens and searches existing text. OCR PDF can add an invisible text layer to image-only scans. The analysis tools report document health, likely blank or duplicate pages, page dimensions and orientation. Each tool answers a different diagnostic question.
These checks run in your browser. Some results are heuristics, not guarantees: faint marks can confuse blank-page detection, visually similar pages are not always duplicates, and a health score is not a certification. Use the findings to decide what to inspect manually or which editing tool to use next.
Choose a workflow
PDF Analysis & OCR tools
PDF IntelligencePopular
OCR PDF
Make scanned PDFs searchable
PDF IntelligencePopular
PDF Reader
Read, search and inspect PDFs
PDF IntelligencePopular
PDF Health Check
Understand your document at a glance
PDF Intelligence
Blank Page Detector
Find likely blank or near-blank pages
PDF Intelligence
Duplicate Page Finder
Spot possible repeated pages
PDF Intelligence
Page Size Analyzer
Find A4, Letter and unusual sizes
PDF Intelligence
Orientation Analyzer
List portrait, landscape and square pages
How to choose the right tool
Recognize a scan
OCR PDF identifies likely image-only pages and adds searchable printed English words while preserving the visible page image.
OCR PDFInvestigate document condition
PDF Health Check summarizes page and text clues; Blank Page Detector and Duplicate Page Finder focus on likely cleanup candidates.
PDF Health CheckCheck page geometry
Page Size Analyzer and Orientation Analyzer help locate mixed dimensions or sideways pages before printing or conversion.
Page Size AnalyzerCommon use cases
- Determine whether a scanned archive can be searched and use OCR only on the pages that need it.
- Find likely empty pages in a batch scan, then review before using Delete PDF Pages.
- Locate duplicate-looking pages or mixed sizes before assembling a final packet.
OCR and scan detection
An image-only PDF can look readable while containing no machine-readable words. Smart OCR skips pages with usable existing text and processes likely scans. Recognition accuracy depends on print clarity and layout; copied text needs review. English is the verified OCR language in the current release.
Interpret reports carefully
Blank-page checks look for near-white pages with little detected ink. Duplicate detection compares visual similarity, not legal or semantic equivalence. Health, size and orientation findings are guides for human review; they do not silently delete or rewrite pages.
PDF Analysis & OCR FAQ
Why can I see words but not search them?
The PDF may contain page images instead of a text layer. OCR PDF can recognize printed English and add a searchable layer to a copy.
Are blank or duplicate findings definitive?
No. Faint content and similar forms can affect the visual heuristics. Review flagged pages before deleting or combining anything.
Will these analysis tools upload my PDF?
The reader, OCR and inspection workflows on this page process selected PDF content in the browser; OCR engine assets download when needed.