PDF Studio
PDF Studio is a powerful and affordable PDF editor that effortlessly caters to both simple and complex PDF tasks. From adding text, various annotations, watermarks, and digital signatures to filling out forms and converting MS Office to PDF, it covers all your needs.
The PDF editor is perfect for companies and organizations looking to seamlessly automate their PDF editing and eliminate repetitive daily tasks with batch processing of multiple documents. Empower your team with perpetual PDF software at a fraction of the cost compared to competing subscription-based solutions like Adobe® Acrobat®.
NEW: Qoppa PDF Studio 2023 released!
The latest version, PDF Studio 2023, offers impressive enhancements, including support for Dropbox Team Spaces, improved enterprise deployments, expanded multi-document functions, a new highlighter marker tool, and optimization options for smaller document sizes.
Available on Linux, Windows, macOS, and other major platforms.
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pdfRest
pdfRest is a developer PDF API with 40+ endpoints for conversion, extraction, and document manipulation. Convert to and from PDF (Word, Excel, PowerPoint, images, PDF/A, PDF/X). Merge, split, compress, and linearize. Extract text, images, and metadata. Add OCR to scanned documents. Watermark, encrypt, decrypt, restrict, and redact. Fill, flatten, import, and export form data. Requests are chainable, so multi-step document pipelines run in sequence without shuttling files back and forth between calls.
What sets pdfRest apart in the PDF API space is deployment flexibility. Most PDF APIs are cloud-only. pdfRest ships three ways: Cloud, Container and AWS Marketplace.
For teams running an evaluation: pdfRest is SOC 2 Type 2 audited and supports GDPR and HIPAA requirements. The Container deployment is the strongest fit for regulated workloads, specifically because processing happens entirely inside your own environment.
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Smallpdf
Made in Switzerland, the land of watches, banks, and clean design, Smallpdf is an award-winning company that offers a suite of clever document management tools for everyone—for work, for home, for life.
Founded in 2013, Smallpdf provides a simple, secure, and reliable answer to heavy, awkward PDF software. By removing unnecessary features and adding a deep focus on user experience, Smallpdf has become the most-loved and most-trusted PDF software on the planet, serving over 500 million users, 100,000 different companies, in 24 different languages, and in every country in the world—even Antarctica!
Smallpdf integrates seamlessly with professional and personal tasks, boosting productivity and simplifying the way people manage their documents, with tools to compress, convert, edit, sign, protect, and unlock PDF documents in just a few easy steps.
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Adobe PDF Library SDK
Adobe PDF Library is the only commercial PDF SDK built on Adobe Acrobat's own core engine, delivering the same rendering accuracy, PDF spec coverage, and behavior as Acrobat itself.
Available in Modern C++, Adobe C/C++, .NET, .NET Framework, and Java, and supported on Windows, macOS, and Linux. Create, edit, merge, split, annotate, and watermark PDFs programmatically; convert to and from Word, Excel, PowerPoint, PDF/A, PDF/X, and more; add OCR, digital signatures, redaction, and encryption; and process AcroForms and XFA forms.
SOC 2 Type 2 compliant, with a 91% customer retention rate among enterprise users.
For enterprise deployment, the pdfRest API Toolkit Container packages this technology as a self hosted REST API for on premises, private cloud, or hybrid environments.
Datalogics also offers Scout, an AI assistant, and an MCP server so teams can bring PDF capabilities into AI powered workflows.
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