What is PDF/A format?

PDF/A is an ISO-standardized version of PDF designed for long-term archiving. It embeds all fonts, colors, and resources so the document looks the same in 100 years.

PDF/A is required by courts, government agencies, and many institutions for official document submission and long-term archiving.

What is the difference between PDF/A-1, PDF/A-2, and PDF/A-3?

PDF/A-1 is the strictest standard. PDF/A-2 allows modern features like transparency and JPEG 2000. PDF/A-3 allows embedding of any file type.

Will my PDF look different after PDF/A conversion?

The visual appearance stays the same. PDF/A embeds all fonts and resources to ensure identical rendering across any PDF viewer.

Can I convert any PDF to PDF/A?

Most PDFs can be converted. PDFs with encrypted content, digital rights management, or certain proprietary features may not convert fully.

PDF/A Converter

Create archive-safe PDFs

PDF/A version

Create archive-safe PDFs

Convert to archive-safe PDF/A format

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01

Upload your PDF

Select the PDF you want to convert to PDF/A format.

02

Convert to PDF/A

Click "Convert to PDF/A". PDFredo will process your document according to the PDF/A-1b standard.

03

Download the PDF/A file

Download your archive-compliant PDF/A file, ready for long-term storage.

Compress PDF

Reduce PDF file size while maintaining quality

Flatten PDF

Lock forms, annotations and layers permanently into the page

PDF/A Converter

Create archive-safe PDFs

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Upload your PDF

Convert to PDF/A

Download the PDF/A file