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What is a PDF/A, and Why Should You Care?

By Higher Information Group on May 1, 2026 | Document Solutions

There are some industries, such as government, healthcare, and banking, where documents need to be stored for decades. PDF/A (Portable Document Format Archival) is excellent for preserving these files. (Good riddance to printing and storing physical copies of documents!)

You might be asking: What is PDF/A? Well, it’s a special kind of PDF that ensures the visual appearance of a document remains the same, regardless of what hard- or software is used.

All the information needed to display the document and its elements (think fonts, images, color information) is embedded in the file. This means the documents will remain readable even if the hard- or software used to access the documents changes.

You might be wondering how a PDF/A is different from a PDF. Good question! Let’s break it down.

When PDF/A Makes the Most Sense

Not every document needs to be stored as a PDF/A file. However, records that must remain readable, consistent, and accessible over time are strong candidates for PDF/A.

Common use cases include:

Contracts and legal agreements
Financial records and audit documentation
HR files and employee records
Medical documentation
Engineering and technical documentation
Historical business records

Many industries depend on reliable document preservation. Healthcare providers maintain patient files, legal teams archive case materials, and government agencies store public records. Financial institutions and engineering firms also benefit from consistent file formatting and dependable access.

Because PDF/A embeds fonts, graphics, and formatting directly into the file, documents remain accessible even as software, hardware, and operating systems change over time. This makes PDF/A especially useful for compliance, record retention, and historical reference.

How PDF/A Is Different from PDF

PDF/A is meant for preserving documents that can be restored when needed. A PDF can’t preserve documents.
PDF/A does not allow audio, video, and executable content, while PDF does.
PDF/A requires that graphics and fonts be embedded into the file, while PDF does not. This ensures that a user of a PDF/A does not need the same fonts that were used to create the original file installed on their computer to read the file.
PDF/A does not allow external content references, while PDF does.
PDF/A does not allow encryption, while PDF does.

After reading this list, you might be thinking: Geez, what’s a PDF/A good for? It turns out it’s good for a lot.

The Benefits of PDF/A

Archiving: As previously mentioned, PDF/A’s main draw is the long-term storage of digital information. This is especially useful for certain industries, such as banking and insurance.
Perfect conversion: PDF/A is ISO-standardized in contrast to a PDF. It must meet certain requirements so that years from now, the look of the original file remains the same. This is especially important should a legal dispute arise. You can be confident that you can rely on PDF/A documents and that they have not been altered.
Searchable: You can search PDF/A documents, saving you time and money.
Legally binding: PDF/A is a great option for digitally signed documents and records. Digital signatures recorded in the PDF/A file can be enforceable by law.
Reusable: PDF/A makes it easy to reuse content. The files can be easily converted to Word, HTML, or eBook formats.

Understanding the Different PDF/A Versions

PDF/A is not a single format. There are multiple versions designed to support different needs and use cases.

PDF/A-1 focuses on basic archival compatibility and is commonly used for straightforward document preservation.

PDF/A-2 adds support for additional features, including improved compression and layered content.

PDF/A-3 allows files such as spreadsheets or XML documents to be embedded within the PDF/A file while maintaining archival compliance.

Each version maintains file integrity while offering flexibility depending on file complexity and workflow needs.

Converting Existing Documents to PDF/A

Many businesses already maintain large collections of files in standard PDF or other formats. Converting these documents to PDF/A helps improve consistency and future accessibility.

Conversion is often prioritized for:

Archived business records
Contracts and agreements
Compliance documentation
Historical digital files
Scanned paper records

This process can be completed gradually, allowing teams to standardize file formats without disrupting daily operations.

Planning a Document Preservation Strategy

Implementing PDF/A is often part of a broader file management approach. This may include reviewing retention requirements, storage policies, and access needs.

A structured strategy may involve:

Identifying records requiring extended retention
Establishing naming conventions
Defining archiving workflows
Implementing management tools
Creating retention guidelines

Incorporating PDF/A into a broader approach helps improve accessibility, consistency, and reliability over time.

Using this document preservation tool will keep your documents safe, accessible, and easy to search. The format can also be used for scanned documents.

If your organization needs help making documents PDF/A compliant, our document conversion team can help.

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