Convert documents to archival-ready PDF/A

Ensure long-term preservation, compliance, and accessibility by converting PDFs, Office files, and images to ISO-standardized PDF/A formats — across web, mobile, and server environments.


Convert PDF, Word, Excel, and PowerPoint to PDF/A

Turn DOCX, XLSX, PPTX, and existing PDFs into archival-grade files with just a few lines of code.

Preserve layout and fonts

Retain the exact layout, styling, and fonts from source files when exporting to PDF/A — with support for dynamic and custom font loading.

Control output and fidelity

Generate PDF/A-compliant outputs, flatten annotations, and configure export behavior for scans, spreadsheets, and presentations.

Use across platforms

Convert documents from any device using Web SDK, .NET, or Document Engine, or mobile SDKs for iOS, Android, MAUI, and more.


HOW IT WORKS

Convert any document to a compliant PDF/A

Transform PDFs, DOCX, PPTX, XLSX, and images into archival-ready files in three steps.

KEY FEATURES

PDF/A conversion without compromise

Support the latest archival standards with flexible export options.

Illustration demonstrating how documents can be converted to PDF/A for archiving
All PDF/A versions and levels

Generate PDF/A-1a, 1b, 2a, 2b, 2u, 3a, 3b, 3u, 4, 4e, and 4f.


Convert from any supported format

Create archival files from PDF, Word, Excel, PowerPoint, and images.


Client-side and server-side support

Run conversion in the browser or server-side with Document Engine.


Font embedding and substitution

Ensure visual fidelity with dynamic font fallback or custom font loading.


Accessible and standards-compliant

Preserve reading order, tagged content, and metadata where supported.


Batch-ready and headless

Run conversion behind the scenes for automation and background workflows.


Supported on your platform



Run it your way

Whether you’re building for web, mobile, or the backend, Nutrient gives you full flexibility — all with a consistent developer experience.

Client-side SDKs

Use the web, mobile, and cross-platform SDKs to embed document capabilities directly into your app — fully client-side, no backend required


Server-backed control

Use Document Engine for server-backed processing, data control, and deep infrastructure integration


Cloud-hosted scale

Use Document Web Services (DWS) for instant scale, with cloud-hosted APIs for viewing, annotating, converting, and more


WEB PLAYGROUND

Looking for the code? Come play in our sandbox



REAL-WORLD IMPACT

Built for scale. Trusted in production.

Nutrient powers mission-critical document workflows for global enterprises — from compliance-heavy industries to modern SaaS teams.


Integrated the Nutrient PDF SDK to deliver high‑fidelity previews and editing in its mobile apps, shipping customer‑requested features to 115,000 organizations months ahead of schedule.


Renders multipage PDFs and signature tags with Nutrient, keeping 200 million users in 188 countries moving at the speed of eSignature.


Empowers 34,000 pilots to view, annotate, and sign 90-page flight releases on iPad using Nutrient iOS SDK, saving minutes — and money — on every flight.

FREE TRIAL

Add PDF/A conversion to your app — no credit card required

Frequently asked questions

What is PDF/A and why does it matter for document archiving?

PDF/A is an ISO-standardized version of PDF optimized for long-term preservation. It embeds all necessary fonts, metadata, and color profiles to ensure documents look the same years later. PDF/A is required for legal, financial, healthcare, and government records that must remain accessible and verifiable over time.

Which PDF/A versions and conformance levels are supported?

Nutrient supports all official PDF/A variants, including:

  • PDF/A-1a, PDF/A-1b
  • PDF/A-2a, 2u, 2b
  • PDF/A-3a, 3u, 3b
  • PDF/A-4, 4e, 4f

Choose the right level based on your accessibility, embedded file, or compliance needs.

Can I convert documents to PDF/A in bulk?

Yes. Nutrient supports batch conversion via server-side Document Engine or headless Web SDK workflows — ideal for automating compliance, archiving large volumes of documents, or integrating with content management systems.

Do converted files pass validation with tools like veraPDF?

Yes. Nutrient-generated PDF/A files are standards-compliant and validated against ISO requirements using industry tools like veraPDF. This ensures compatibility with archives, courts, and institutional repositories.

What platforms support PDF/A conversion with Nutrient?

PDF/A export is available across:

  • Web SDK (JavaScript/TypeScript) for client-side use
  • .NET SDK for Windows desktop and server apps
  • Document Engine for API-based server-side workflows
  • Mobile SDKs for iOS, Android, Flutter, MAUI, and React Native

You can convert Office files, PDFs, and images to PDF/A in any modern development environment.


PDF/A SDK for developers: Preserve documents with confidence

PDF/A conversion is critical for preserving the integrity, readability, and legal validity of your documents. Nutrient makes it easy to integrate PDF/A export into any workflow — from archiving scanned forms, to submitting court-compliant records.

Common use cases include:
  • Archive contracts, invoices, and HR files in stable formats
  • Convert signed PDFs to PDF/A for long-term retention
  • Meet legal and regulatory requirements in finance, law, and healthcare
  • Store research papers, technical documentation, and manuals in accessible formats
  • Automate high-volume PDF/A conversion with batch-ready APIs
Key features developers look for:
  • Convert from PDF, DOCX, XLSX, PPTX, PNG, JPEG, and more
  • Export to PDF/A-1, 2, 3, or 4 — with full conformance options
  • Perform conversion client-side, server-side, or in mobile apps
  • Ensure accessibility and metadata preservation
  • Validate outputs with veraPDF and other compliance tools

Looking for a reliable, developer-friendly PDF/A conversion SDK? Nutrient helps you build for the future — with compliance, compatibility, and confidence built in.