PDF to PDF/A Converter - Convert PDF to Archive Format Online Free | NToolHub

PDF to PDF/A Converter

Convert regular PDF to archive-ready PDF/A format. ISO-standardized for long-term preservation. Choose PDF/A-1B, 2B, or 3B. 100% browser-based.

ISO Standard
Long-term Archive
100% Secure
Mobile Friendly
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Upload PDF to Convert

Convert your PDF to archive-ready PDF/A format | Max 50MB

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PDF/A Conversion Complete!



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How to Convert PDF to PDF/A

1

Upload PDF

Drag & drop your PDF file. Max 50MB supported.

2

Check Compliance

Review the compliance checklist to see if your PDF meets PDF/A requirements.

3

Select Version

Choose PDF/A-1B (basic), 2B (transparency), or 3B (attachments).

4

Convert & Download

Convert to archive-ready PDF/A and download instantly.

PDF/A Features

PDF/A-1B

Basic archival

PDF/A-2B

Transparency

PDF/A-3B

Attachments

Compliance

Auto-check

Fonts Embedded

Auto-embed

Color Preserved

ICC profiles

ISO Standard

19005 compliant

100% Secure

Browser-based

Mobile Ready

All devices

Unlimited Free

No registration

FAQ

What is PDF/A format?
PDF/A is an ISO-standardized version of PDF designed for long-term archiving. It ensures documents can be reproduced exactly the same way in the future, regardless of software. All fonts are embedded, colors are device-independent, and encryption is prohibited.
Which PDF/A version should I choose?
PDF/A-1B for legal/government documents (most compatible). PDF/A-2B for modern docs with transparency/layers. PDF/A-3B when you need to embed other files inside the PDF.
Why convert to PDF/A?
Many organizations, courts, and government agencies require PDF/A for document submission. It ensures your document will be viewable and printable exactly as intended for decades to come.
Is my PDF safe?
100% safe! All processing is client-side in your browser. Your PDF never leaves your device.
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