Pdftools | Developer SDKs & solutions for PDF and PDF/A

# Pdftools The PDF infrastructure layer built on 25 years of hard problems in regulated industries. Document processing infrastructure for banking, insurance, government, and the system integrators building on their behalf. One unified stack: normalize, convert, validate, extract, redact, archive, view. Deploy on-prem, hybrid, and sovereign cloud. No external data transmission required. Trusted by SUVA, SwissLife, UBS, SIX, PostFinance, Austrian Ministry of Justice, and Bayer. --- ## Key pages (start here) - [Pdftools SDK overview](https://www.pdf-tools.com/products/conversion/pdf-tools-sdk/) — Multi-language SDK (C, Java, .NET, Python) for PDF/A conversion, compression, validation, extraction, and archiving in regulated workflows. - [Pdftools SDK getting started](https://www.pdf-tools.com/docs/pdf-tools-sdk/getting-started/) — Language-specific setup, licensing, and first integration guide. - [Conversion Service](https://www.pdf-tools.com/products/conversion/conversion-service/) — Containerized REST API for high-volume PDF/A conversion and OCR. Deployable on-prem or air-gapped. - [PDF Viewer SDK](https://www.pdf-tools.com/products/viewing-printing/pdf-web-viewer/) — Client-side PDF viewer (WebAssembly, JavaScript) with annotations, redaction, and the fastest time-to-first-page in class. - [Pdftools SDK vs. Apryse](https://www.pdf-tools.com/pdftools-sdk-vs-apryse/) — Feature-by-feature comparison showing where Pdftools stands out: PDF/A compliance, memory efficiency, and usage-based pricing. - [AI Smart Redact](https://www.pdf-tools.com/products/manipulation/ai-smart-redact/) — AI-powered redaction that automatically detects and structurally removes PII and sensitive data from PDFs. - [Code samples](https://www.pdf-tools.com/docs/pdf-tools-sdk/code-samples/) — Working examples across SDK languages and use cases. - [Pricing](https://www.pdf-tools.com/pricing/) — Consumption-based, transparent per-page pricing. Trial available.