IronPDF is a PDF library from Iron Software for .NET, Java, Python and Node.js. You add it to your own application, render HTML, Razor views or URLs to PDF with a Chrome rendering engine, and edit PDFs in code: merge and split pages, fill AcroForm fields, apply digital signatures, add watermarks and output PDF/A or PDF/UA. It is sold as perpetual licenses from $999 and runs on Windows, Linux, macOS, Docker, Azure and AWS. A library you code against is a different offer to PDF Generator API. The comparison below breaks down where each fits.
IronPDF pricing vs PDF Generator API
IronPDF sells perpetual developer licenses as a one time payment, from $999 for one developer to $4,799 for unlimited developers, with Enterprise on quote. PDF Generator API is a document generation platform from €8/month with a 14-day free trial, an embeddable editor, and dedicated or on-premises deployment.
IronPDF
PDF library for .NET, Java, Python and Node.js · perpetual license
- Free trial30 days
- From$999 one time (Lite)
- Scales to$4,799 one time (Unlimited)
Lite $999 covers 1 developer, 1 location and 1 project, Plus $1,499 covers 3 of each, Professional $2,399 covers 10 and Unlimited $4,799 removes the limits, with Enterprise on quote; the same prices apply to .NET, Java, Python and Node.js. Every license is perpetual and includes 1 year of support and updates and a 30 day money back guarantee, royalty free redistribution for SaaS or OEM products is sold separately, and the 30 day trial needs no credit card and comes with 24/5 engineering support by live chat. The library runs on your own servers on Windows, Linux, macOS, Docker, Azure or AWS. There is no hosted API, visual template editor, editor to embed for your customers, no code integration or published ISO 27001 certification.
PDF Generator API
Cloud plans · billed by credits · 14-day free trial
- Individualfrom €8/mo
- Teamfrom €52/mo
- Scales to250k credits/mo
Individual starts at 50 credits and 5 templates; Team starts at 1,000 credits, 25 templates and 10 workspaces, with unlimited templates and the embedded editor on higher tiers. Every plan includes a 14-day free trial, and on-premises deployment is available on request.
IronPDF alternative: which one fits
IronPDF gives .NET, Java, Python and Node.js developers full control of the PDF inside their own code: Chrome rendering of HTML, CSS and JavaScript, Razor and CSHTML views, URL, DOCX and Markdown conversion, merging and splitting, AcroForm fields, digital signatures with .pfx certificates, password protection, PDF/A and PDF/UA output, and async, multithreaded generation. Because it runs on your own servers, document data never leaves your infrastructure, and a single developer generating high volumes pays $999 once, which can cost less than a year of credit based plans. It fits engineering teams who want PDF output built into their codebase. Templates live in that code, though, so every layout change needs a developer and a deploy, and there is no visual editor, template management, hosted endpoint or Zapier and Make integration.
PDF Generator API moves templates out of your codebase: a hosted API in the US, EU, UK and Australia, a drag and drop embeddable editor your own customers can use, workspaces for template management, web forms that collect data, document signing, HTML to PDF through the same API, XRechnung and Factur-X electronic invoices, 8 SDKs including C#, Java and Python, and Zapier, Make and n8n. It is ISO 27001 certified and GDPR and HIPAA compliant, and if your data has to stay on your own infrastructure, dedicated or on premises deployment keeps it there. To compare, rebuild one of your IronPDF HTML templates in the editor during the free trial and call it with the same JSON from your existing C#, Java or Python code.
IronPDF vs PDF Generator API: FAQ
How much does IronPDF cost?
IronPDF sells perpetual licenses as a one time payment: Lite $999 for one developer, Plus $1,499, Professional $2,399 and Unlimited $4,799, with Enterprise on quote. Every license includes one year of support and updates. PDF Generator API is a hosted API billed monthly, from €8 a month for 50 credits.
What is the best IronPDF alternative?
If you want another library inside your own code, Apryse is the closest. If you want templates out of your codebase, a hosted API, a drag and drop editor your customers can use, or Zapier, Make and n8n integrations, PDF Generator API covers those, with on premises deployment if data must stay with you.
Is IronPDF a hosted API?
No. IronPDF is a library you add to your .NET, Java, Python or Node.js application and run on your own servers. PDF Generator API is a hosted REST API with 8 SDKs, so you call an endpoint instead of running the rendering engine yourself.
Comparing more tools? See Apryse vs PDF Generator API and pdfRest vs PDF Generator API, or all comparisons. Last updated: October 2026.