PDF // DOCUMENT ENGINE

> SYSTEM_STATUS: ONLINE

Stateless API for document optimization, OCR and format conversion.

CAPABILITIES

Task	Input	Output	Engine
compress	PDF	PDF	Ghostscript
ocr	PDF/IMG	PDF	Tesseract
webp	PDF/IMG	WebP	cwebp / GS
png	PDF	PNG	Ghostscript

HOW-TO & EXAMPLES

1. Compress a PDF

Optimizes PDF for web or ebook quality.

# Generate signature
SIG=$(openssl dgst -sha256 -hmac "YOUR_KEY" "doc.pdf" | awk '{print $2}')

# Send request
curl -X POST https://pdf.tx.lk/ \
  -H "X-Signature: $SIG" \
  -F "pdf=@doc.pdf" \
  -F "task=compress" \
  -F "quality=low" \
  --output "compressed.pdf"

2. Create PNG Cover (Thumbnail)

Renders the first page of a PDF as a PNG image.

SIG=$(openssl dgst -sha256 -hmac "YOUR_KEY" "doc.pdf" | awk '{print $2}')

curl -X POST https://pdf.tx.lk/ \
  -H "X-Signature: $SIG" \
  -F "pdf=@doc.pdf" \
  -F "task=png" \
  --output "preview.png"

3. Convert PNG/JPG to WebP

Optimizes raw images to modern WebP format for web usage.

SIG=$(openssl dgst -sha256 -hmac "YOUR_KEY" "image.png" | awk '{print $2}')

curl -X POST https://pdf.tx.lk/ \
  -H "X-Signature: $SIG" \
  -F "pdf=@image.png" \
  -F "task=webp" \
  --output "result.webp"