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 years in the future by embedding all fonts and prohibiting certain features.

Why should I convert to PDF/A?

PDF/A is required for legal documents, government archives, and business records that must be preserved long-term. It guarantees the document will display identically regardless of software used.

What PDF/A versions are supported?

Our tool converts to PDF/A-1b and PDF/A-2b, the most widely accepted archival standards for document preservation.

Is PDF to PDF/A conversion free?

Yes, our PDF/A converter is completely free with no registration required.

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アーカイブ形式に変換

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自動削除

処理後、ファイルは自動的に削除されます

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どこでも動作

あらゆるデバイス、あらゆるブラウザで、インストール不要

PDF/Aへの変換方法

1
PDFファイルを選択またはアップロードエリアにドラッグします。
2
変換をクリックしてPDFをPDF/Aアーカイブ形式に変換します。
3
PDF/A準拠ファイルをダウンロードします。

Why Use PDF/A Format?

PDF/A is the ISO standard for digital document preservation. It guarantees your documents will remain readable decades from now, regardless of future software changes.

Who Requires PDF/A?

Government Agencies: Many require PDF/A for official filings and archives.
Legal Systems: Courts often mandate PDF/A for e-filing.
Healthcare: Medical record archival standards often specify PDF/A.
Financial Institutions: Regulatory compliance often requires archival formats.

Choosing a Version

PDF/A-1b: Maximum compatibility, supported everywhere. PDF/A-2b: Adds transparency and JPEG2000 support. PDF/A-3b: Allows file attachments within the PDF.

よくある質問

What is PDF/A and why should I use it?

PDF/A is an ISO standard for long-term digital preservation. It ensures documents remain readable regardless of software changes over time.

What's the difference between PDF/A-1b, 2b, and 3b?

PDF/A-1b is most compatible. PDF/A-2b adds JPEG2000 and transparency support. PDF/A-3b allows embedding any file type.

Is PDF/A required for legal documents?

Many government agencies and legal systems require PDF/A for official submissions to ensure long-term accessibility and authenticity.

Is converting to PDF/A free?

Yes, completely free with no registration, watermarks, or hidden fees.

Will my fonts and images be preserved?

Yes, PDF/A embeds all fonts and images directly, ensuring identical display on any system, now or in the future.

Which PDF/A version should I choose?

PDF/A-1b for maximum compatibility. PDF/A-2b if you need transparency. PDF/A-3b if you need to embed attachments.

Will JavaScript or forms still work?

PDF/A removes JavaScript and disables interactive forms for archival stability. Content becomes static and unchangeable.

Does PDF/A increase file size?

Often yes, because fonts are embedded and compression options are limited. This ensures long-term readability.

How do I know if my PDF is PDF/A compliant?

After conversion, open in Adobe Acrobat and check properties, or use a PDF/A validator to confirm compliance.

Is PDF/A good for archiving business documents?

Yes, PDF/A is ideal for contracts, invoices, legal documents, and any files requiring long-term preservation and compliance.