Best PDF Generation APIs in 2026: DocRaptor, PDFShift, Gotenberg, PDF Generator API and More

Choosing a PDF generation API in 2026 is no longer a question of which service can turn HTML into a PDF. Almost all of them can. The question is what happens after the first document works: who edits the templates, what the bill looks like at ten times the volume, and whether the output holds up when a regulator, a screen reader or a procurement questionnaire arrives.

This comparison covers seven of the most widely used options, with published pricing, honest limitations and a clear recommendation for each type of team.

Short answer: which PDF API should you use?

For simple HTML to PDF conversion, use PDFShift. For print grade layout fidelity, use DocRaptor. For self hosting with no vendor cost, use Gotenberg. If your own customers need to edit the templates themselves, use PDF Generator API.

Everything below explains how those four recommendations were reached, and covers three more options worth knowing about.

Comparison at a glance

How these tools were compared

Every price in this article comes from the vendor’s own public pricing page, checked on 31 July 2026 and quoted in the currency the vendor publishes. Feature claims come from vendor documentation. Where a product is our own, the limitations section is written to the same standard as the others, because a comparison that only flatters one product is not useful to anyone deciding.

1. PDF Generator API

PDF Generator API is a document generation API with a drag and drop template editor that you can embed in your own product, so your customers build and edit their own document templates without contacting your developers.

Best for: SaaS platforms, ERP vendors and marketplaces whose customers each need slightly different invoices, contracts or reports.

Pricing: 14 day free trial, then from €8 per month for 50 credits a month and 5 templates. Team plans start at €520 per year for 1,000 credits a month across 10 workspaces, €880 per year for 5,000 credits, and €1,770 per year for 15,000 credits with unlimited templates and workspaces. Enterprise reaches 250,000 credits a month. Annual billing saves 17 percent against monthly.

Strengths

• An editor your customers can use. This is the main difference from every other API in this list. Templates are edited in a visual editor, not in a code repository, so a wording change does not become an engineering ticket.
• Workspaces for multi tenant products. Each of your customers gets isolated templates and data under one account, which is the structure a platform needs and a plain conversion API does not provide.
• Compliance included. GDPR, ISO 27001 and HIPAA on every plan, with EEA data residency available through a dedicated deployment and an on premises option when data cannot leave your own infrastructure.
• More than conversion. HTML to PDF, PDF form filling, structured e invoice output and accessibility under the European Accessibility Act are part of the same platform.

Limitations

• More product than a small job needs. If you generate one invoice layout from your own HTML and nobody outside your engineering team will ever touch it, a conversion API costs less and takes less time to learn.
• Credits, not raw conversions. The pricing model counts merges, so estimate your monthly document volume before comparing headline prices with a per conversion service.
• The editor has a learning curve. The component based editor is more capable than a plain HTML template, and that capability takes an afternoon to get comfortable with.

2. DocRaptor

DocRaptor is an HTML to PDF API built on the PrinceXML rendering engine, aimed at documents where layout precision matters more than price.

Best for: long, complex documents such as reports, books, statements and legal packs, especially where accessibility is required.

Pricing: free plan with 5 documents a month, paid plans from $15 per month, with an effective cost between roughly 2.5 and 12 cents per document depending on the plan. Test documents are unlimited and free, watermarked, with no trial clock.

Strengths

• The best rendering engine in this list. PrinceXML handles page breaks inside tables, running headers, footnotes and multi page layouts that browser based renderers get wrong.
• Accessibility support. Tagged, accessible PDF output aligned with WCAG and Section 508, which matters now that the European Accessibility Act is enforced.
• Unlimited free test documents. You can get the output exactly right before paying anything, which removes most of the evaluation risk.
• No penalty for large documents. Complex or heavy files do not consume extra credits.

Limitations

• Expensive at volume. Per document pricing is the highest here, and the gap widens as you scale.
• No template editor. Templates are HTML and CSS in your codebase, so every change goes through a developer.
• Steeper learning curve. Getting the most out of the Prince engine means learning print specific CSS that most web developers have never written.

3. PDFShift

PDFShift is a straightforward HTML to PDF conversion API with a single job: take a URL or an HTML string and return a PDF quickly and reliably.

Best for: developers who already have HTML templates and want the cheapest reliable way to render them.

Pricing: free plan with 50 credits a month, then $9 for 500, $24 for 2,500, $39 for 5,000, $99 for 25,000 and up to $999 for one million conversions a month. One credit covers one document per 5 MB of output, so a 14 MB file costs three credits. Unused credits do not roll over. Annual billing gives two months free.

Strengths

• Cheapest credible option at every volume. $39 a month for 5,000 documents is hard to beat.
• Fast to integrate. One endpoint, clear documentation and language guides for Node, Python, PHP, Ruby and Java.
• JavaScript and CSS support included on every plan, along with encryption, watermarking and custom headers and footers.

Limitations

• Conversion only. No template management, no editor, no workspaces. You own the whole template layer.
• Browser rendering limits. Complex print layouts that Prince handles cleanly need manual work here.
• The free plan caps files at 15 MB with a 30 second timeout, which is enough to evaluate but not to run anything real.

4. Gotenberg

Gotenberg describes itself as a Docker based API built for PDF conversion. It is free and open source under the MIT licence, and you run it yourself.

Best for: teams with infrastructure capability who need documents to be produced inside their own network, or who have volume high enough that any per document price hurts.

Pricing: no licence cost. Your cost is the servers it runs on and the engineering time to operate it.

Strengths

• No vendor cost and no volume ceiling. Generate a million documents and the licence still costs nothing.
• Wide format coverage. Chromium converts URLs, HTML and Markdown, LibreOffice handles Word, Excel, PowerPoint and more than a hundred other formats, and QPDF, pdfcpu and ExifTool cover merging, splitting, encryption and metadata.
• Data never leaves your infrastructure, which settles a large part of most security reviews before they start.
• Production features included, such as PDF/A output, wait conditions for single page applications, webhooks and direct writes to S3, MinIO or Google Cloud Storage.

Limitations

• Free is not the same as cheap. You own scaling, monitoring, patching and uptime. One engineer spending a day a month on it costs more per year than most paid plans here.
• No template layer at all, and no interface for anyone who does not write code.
• No support contract and no compliance certifications to inherit. Whatever your auditor asks for, you produce yourself.

5. PDFMonkey

PDFMonkey is a hosted document generation service with a template editor, aimed at small teams and independent developers.

Best for: small teams that want templates managed outside their codebase without paying platform prices.

Pricing: free plan with 20 documents a month and one day retention, then €5 for 300, €15 for 3,000, €60 for 5,000 with unlimited retention and collaborators, and €300 for 60,000. A 30 day trial gives 300 documents with no card required. Overage runs at roughly half a cent per extra document on the higher plans.

Strengths

• Unlimited templates on every plan, including the free one.
• Good developer experience. Choosing the code path opens a working, commented template with a live preview rather than an empty editor.
• AI template generation. Describe the document you want and it produces a starting template.

Limitations

• Built for your team, not your customers. There is no multi tenant workspace model for giving each of your own customers their own template set.
• Short retention on lower plans. The free plan keeps documents for one day and the Pro plan for seven.
• Smaller team behind it, which is worth weighing if you are buying for a ten year product.

6. APITemplate.io

APITemplate.io generates both PDFs and images from templates, with strong support for automation platforms.

Best for: teams running document generation from Zapier, Make, n8n or Airtable rather than from their own backend, and anyone who needs generated images as well as PDFs.

Pricing: free plan with 50 documents a month and 3 templates. PDF only plans run $24 for 3,000, $89 for 12,000 and $179 for 25,000 a month. Combined image and PDF plans start at $35 for 1,500. Annual billing saves up to 20 percent.

Strengths

• No code integrations on the free plan, including Zapier, Make, n8n and Airtable.
• Two editors offered as equals, one visual and one HTML, so the same product serves both audiences.
• Images as well as documents, which is unusual in this category and useful for certificates, social cards and badges.

Limitations

• Template limits per plan. 20 templates on the entry PDF plan is restrictive for a platform with many customers.
• Not designed for embedding in someone else’s product as a customer facing editor.
• Print fidelity is browser grade, so complex paginated layouts need care.

7. Nutrient, formerly PSPDFKit

Nutrient is a PDF SDK rather than a generation API. It is what you buy when your application needs to view, annotate, edit and sign PDFs inside your own interface.

Best for: enterprise applications where the PDF is something users work inside, not just a file they receive.

Pricing: custom quotes only, and priced at the enterprise end of this list by a wide margin.

Strengths and limitations

• Strength. The deepest PDF capability available, across web, iOS, Android and server, with enterprise support to match.
• Strength. On premises deployment is a first class option rather than an exception.
• Limitation. Considerable overkill if all you need is to turn structured data into a document, which is what most teams reading this actually need.
• Limitation. No public pricing, so evaluation starts with a sales conversation.

What 5,000 documents a month actually costs

Headline prices are hard to compare because every vendor counts differently. Here is the same requirement, 5,000 documents a month, priced on each vendor’s published plans. Currencies are shown as each vendor publishes them.

The spread between the cheapest and the most expensive hosted option is roughly four times, which sounds decisive until you price the work each one leaves with you. A conversion API that costs $39 a month still needs someone to build and maintain the template layer, and that engineering time is usually the largest line in the real total.

How to choose

• Your developers own the templates and always will. Choose PDFShift for cost, or DocRaptor if the layout is complex or has to be accessible.
• Your own customers need different documents from each other. Choose a platform with workspaces and an embeddable editor. This is where PDF Generator API is built to sit.
• Documents must never leave your infrastructure. Choose Gotenberg, or a hosted vendor that offers a dedicated or on premises deployment.
• Your workflow lives in Zapier, Make or Airtable. Choose APITemplate.io.
• Users need to work inside the PDF, not just receive it. Choose Nutrient.
• You are a small team on a tight budget that still wants an editor. Choose PDFMonkey.

What changed in 2026

Three things moved this year and they change how the list above should be read.

Accessibility became enforceable. The European Accessibility Act now applies to customer facing documents for many businesses selling into the EU, which means tagged, readable PDF output moved from a nice detail to a requirement. Most conversion APIs still produce untagged output by default.

Structured e invoicing spread. A growing number of European markets now expect machine readable invoice data alongside the human readable PDF, so a tool that only renders a page leaves you with a second problem to solve.

Building your own got easier to start and no easier to finish. AI assistants make a first PDF endpoint a weekend job, which has pushed many teams into building before pricing the maintenance. We looked at that trade in detail in our build versus buy analysis.

Frequently asked questions

What is the best PDF generation API in 2026?

There is no single best option, because the category covers two different jobs. For converting HTML you already have, PDFShift is the best value and DocRaptor produces the best output. For managing templates that people other than your developers will edit, PDF Generator API and PDFMonkey are the strongest choices, with PDF Generator API being the one built for your customers rather than only your team.

What are the best alternatives to DocRaptor?

PDFShift is the closest alternative for straightforward HTML to PDF work at a much lower cost. Gotenberg is the alternative if you want to self host at no licence cost. PDF Generator API is the alternative if the reason you outgrew DocRaptor is that non developers keep needing template changes.

PDFShift versus PDF Generator API, which should I choose?

Choose PDFShift if you have HTML templates in your codebase and want the cheapest reliable way to render them, starting at $9 a month. Choose PDF Generator API if templates need to be created and edited outside the codebase, especially by your own customers, and if you need workspaces, form filling and compliance certifications in the same platform.

Is there a free PDF generation API?

Gotenberg is free and open source under the MIT licence, with no document limit, though you pay for the infrastructure and the maintenance. Among hosted services, PDFShift gives 50 conversions a month, APITemplate.io gives 50, PDFMonkey gives 20 and DocRaptor gives 5 plus unlimited watermarked test documents.

Should I self host with Gotenberg or use a hosted PDF API?

Self host if data residency requirements make it necessary or if your volume is high enough that per document pricing dominates your costs. Use a hosted API if the engineering time to run, monitor and patch a rendering service is worth more to you than the subscription, which for most teams under roughly 50,000 documents a month it is.

Which PDF APIs can produce accessible PDFs for the European Accessibility Act?

DocRaptor produces tagged accessible output aligned with WCAG and Section 508 through the PrinceXML engine, and PDF Generator API offers accessibility and PDF/UA output as part of its compliance features. Most other conversion APIs produce untagged PDFs unless you do the tagging work yourself.

Can non developers create and edit PDF templates?

Yes, with the tools that include a visual editor. PDF Generator API, PDFMonkey and APITemplate.io all provide one. Only PDF Generator API is designed for that editor to be used by your own customers inside your product, through separate workspaces per customer.

How much does a PDF generation API cost?

Entry plans start at $9 to $24 a month for a few thousand documents. At 5,000 documents a month, expect roughly $39 for conversion only, €60 to €90 for a service with a template editor, and around $149 for print grade rendering. Self hosting has no licence cost but carries infrastructure and engineering time instead.

Try it on your own documents

Every recommendation here depends on your documents and who edits them. If your customers need to control their own templates, that is the case PDF Generator API was built for, and a trial takes about as long as reading this article.