The leading PDF SDK
Pdftools SDK is an all-in-one PDF library for .NET Core, C/C++, C#, Java, and more. Start for free with 1,000 credits—no credit card required. Integrates quickly with cross-platform support and high-quality output.
Get 1,000 credits for free
No time limits
No credit card required
Trusted by 6,000+ industry leaders
For lossless yet tiny PDF files
Reduce file size, remove unnecessary elements, and maintain PDF quality. Quickly compress PDFs and optimize for printing by merging fonts and adjusting color spaces.
Modify PDFs with precision
Edit text, annotations, and form fields to modify your PDFs. Change content elements, adjust markup details, and customize field values to update your documents effectively.
Image and PDF conversions simplified
Easily convert between various formats: turn PDFs into PDF/A, create PDFs from images, or transform PDF documents into high-quality images.
Extract content from PDFs
Extract essential information from PDF documents. Retrieve text, images, signatures, and metadata from your PDFs. Convert documents into searchable and analyzable data to improve information accessibility.
Sign PDFs and add encryption
Add different signature types to PDFs, including approval, certification, and time-stamping. Use robust validation tools, create customizable visual appearances, and employ encryption features to address various document security needs.
Add and fill form fields in PDF documents
Create interactive PDFs by adding and populating form fields effortlessly.
PDF document merging and splitting
Assemble pages from one or more PDF inputs and images into any combination of PDF outputs.
PDF/A converter for long-term archiving
Ensure long-term accessibility with the PDF to PDF/A converter. ISO Compliant & veraPDF Valid, the Pdftools SDK converts PDF documents into PDF/A format with unmatched quality assurance.
Generate new PDF documents
Create new PDF files from scratch with Java, .NET, and C support. Add content, form fields, and manage metadata to meet different document creation needs.
PDF printing on your terms
Make every document print-ready with our high-performance SDK. Give your PDFs a fine print treatment—set page dimensions, adjust page orientation, and combine multiple pages into a single one.
PDF redaction – remove sensitive information
Redact text, images, and pages to ensure sensitive data disappears completely. Comply with privacy laws like GDPR by permanently removing personally identifiable information (PII) from your documents.
Verify PDF and PDF/A compliancy
Utilize efficient PDF verification for ISO compliance, including PDF/A standards. The Pdftools SDK supports tailored checks for specific requirements, such as color or font usage, and provides detailed validation reports that classify errors.
Generate ZUGFeRD-compliant invoices with PDF/A-3
Convert PDFs and Microsoft Office documents into ZUGFeRD-compliant PDF/A-3 invoices. Automate B2B invoicing workflows and meet EU (EN 16931) e-invoicing standards.
Time to simplify your workflow and accelerate results
Built for precision – trusted globally
From document conversion to compliance-ready solutions, Pdftools delivers performance and quality to drive your business forward.
Take the next step with the Pdftools SDK
