.pdf Validation
PDF validation that actually reads the document
Extension checks confirm a file ends in .pdf. Uplint confirms the file actually is a PDF, contains readable content, has a valid page structure, and is free of malware.
Common PDF Upload Issues
Blank PDFs with zero readable words (scanned blank pages, placeholder files)
Corrupt PDFs that open but have broken page structure
Executables renamed to .pdf that pass extension checks
PDFs with embedded malware or malicious JavaScript
Password-protected PDFs uploaded to wrong context
What Uplint Validates
MIME type verification (not just extension matching)
Page count and readable word count analysis
Blank content detection (zero-word documents)
Structural integrity validation
Malware and threat scanning
File size and context-based rules
Quick Start
validate-pdf.ts
const result = await uplint.validate(file, {
context: "documents",
scan: true,
detectBlanks: true
});Start validating PDF files today
Try the free CLI first: pip install uplint