True Text Editing & Compliance-Grade Redaction for Java
Enterprise-ready Java SDK that actually edits PDF text in place — no overlays, no flattening. HIPAA-compliant redaction, Spring Boot integration, batch processing, Maven/Gradle. Make PDFs programmable for the first time.
The Problem
What Other Java PDF Libraries Actually Do
Java has excellent PDF libraries, but none of them truly edit text in place. They all fall short for enterprise use cases that demand true content modification, compliance-grade redaction, and semantic document operations.
The Limitations
- iText — Powerful, but expensive (per-developer licenses) and complex. No semantic text editing.
- Apache PDFBox — Can read PDFs, but text editing is low-level and fragile. Layout breaks easily.
- Aspose.PDF — Requires per-developer licenses. Text replacement is overlay-based, not true editing.
- None — Provide compliance-grade redaction with audit trails ready for court.
- Batch processing — Most require complex setup for processing thousands of documents.
What PDFDancer Changes
- True text editing — Find text lines, replace them, and let the PDF reflow automatically.
- Compliance-grade redaction — Permanent content removal (not overlays) with full audit trail.
- Semantic operations — Select by line, paragraph, or regex pattern. The API speaks your language.
- Spring Boot native — REST controllers, service patterns, configuration management out of the box.
- Thread-safe for scale — Process thousands of documents in parallel without corruption.
- Free tier — Start immediately. Pay only when you scale.
See It in Action
Find, Replace, Redact — Three Common Use Cases
Copy and run these examples. The PDFDancer API is intuitive: find content, edit or redact, save. That's it.
Comparison
PDFDancer vs. iText, PDFBox, Aspose
| Feature | PDFDancer | iText | PDFBox | Aspose |
|---|---|---|---|---|
| True Text Editing | ✓ In-place modification | Limited | Limited | Overlay-based |
| Compliance Redaction | ✓ True removal + audit trail | — | — | — |
| Font Preservation | ✓ Automatic | ✓ | ✓ | ✓ |
| Layout Preservation | ✓ Automatic reflow | Manual | Limited | Limited |
| Licensing | Free tier + usage-based | Per-developer | Apache 2.0 (free) | Per-developer |
| Spring Boot Integration | ✓ Native | Manual | Manual | Manual |
True content removal, not overlays. When PDFDancer redacts text, the original content is permanently deleted from the PDF — nothing can be recovered. This is the standard courts require. Most Java libraries do text replacement with overlays, which leaves the original data in the file.
Getting Started
Three Steps to Your First PDF Edit
Add Maven Dependency
Add PDFDancer to your pom.xml and run mvn install:
Get Your API Key
Sign up free at pdfdancer.com/quick-start. Copy your API key and set it as an environment variable or pass it directly to PDFDancer.createSession().
Run Your First Program
Create a Java class that opens a PDF, finds text, and edits it. The code examples above will get you started. Test it locally, then integrate into your Spring Boot app or batch pipeline.
Common Questions
Frequently Asked Questions
Does it integrate with Spring Boot?
Yes. PDFDancer works seamlessly with Spring Boot. Use standard REST controller patterns, inject the API key via @Value, and process PDFs in service classes. See the Spring Boot code example above for a complete working example.
Is redaction compliance-grade (HIPAA, GDPR)?
Yes. PDFDancer redaction is permanent content removal — no overlays, no remnants. Every redaction is logged with timestamp, entity type, and confidence score. This produces the audit trail courts and regulators require.
How is this different from iText?
iText is powerful but low-level and expensive (per-developer licensing). You manually construct PDF objects, worry about layout, and manage fonts yourself. PDFDancer abstracts all that. You say "find text matching this pattern and replace it" — we handle the rest, including reflow and layout. Plus, our API is free to start.
Is it thread-safe for batch processing?
Yes. Each PDF session is independent and thread-safe. You can spawn multiple threads, each with its own PDFDancer.createSession() call. Perfect for processing thousands of documents in parallel without corruption.
Is there a free tier?
Yes. Start free at pdfdancer.com/quick-start. No credit card required. Process up to 100 documents per month. Upgrade to a paid plan as your volume grows. Pay-as-you-go or monthly subscription.
Explore More
Related Topics & Resources
Ready to Build
Start Editing PDFs in Java Today
Sign up free. No credit card. No sales call required. Get your API key in 30 seconds and run the code examples above immediately.