PDF to PDF/A
Convert your PDF to PDF/A format for long-term archival compliance.
How to Convert PDF to PDF/A
Government agencies, legal firms, libraries, and archives require PDF/A for long-term document storage. This ISO-standardized format ensures your documents remain accessible and visually identical for decades, regardless of future software changes. Our free PDF to PDF/A converter helps you achieve compliance easily without specialized software.
PDF/A enforces strict standards: all fonts must be embedded, no external dependencies are allowed, and metadata must be self-contained within the file. This guarantees your document looks the same today, tomorrow, and decades from now on any compliant PDF viewer, protecting your digital records against software obsolescence.
Choose from three compliance levels based on your archiving needs. PDF/A-1b provides basic archiving with embedded fonts and device-independent color for standard text documents. PDF/A-2b adds transparency and layer support for more complex documents with design elements. PDF/A-3b allows embedding external files like spreadsheets or XML data within the PDF package.
Who Needs PDF/A Conversion
Government agencies require PDF/A for all official documents submitted for record keeping, compliance, and public records. All documents submitted to regulatory bodies, courts, and government departments must meet PDF/A standards to be accepted for archival and legal purposes.
Legal firms convert contracts, case files, and evidence documents to PDF/A for long-term archival. When a case closes, documents must be preserved for years or decades. PDF/A ensures these documents remain readable and authentic throughout their entire retention period.
Libraries and universities preserve academic papers, theses, dissertations, and historical documents in PDF/A format to ensure future researchers can access them. Businesses use PDF/A for long-term storage of financial records, tax documents, annual reports, and regulatory filings. Any organization that needs to preserve documents for years or decades should convert to PDF/A.
PDF/A Compliance Levels Comparison
PDF/A-1b is the most basic level and is sufficient for most text documents. It requires fonts to be embedded, colors to be device-independent, and metadata to be self-contained. This level is widely accepted by government agencies and archives worldwide for standard document preservation.
PDF/A-2b builds on level 1 by adding support for transparency, layers, and OpenType fonts. If your document contains transparent images, layered design elements, or modern font features, use level 2b. This level is recommended for design documents, marketing materials, and complex reports.
PDF/A-3b is the most advanced level, allowing embedded files of any format within the PDF package. For example, you can embed the original Excel spreadsheet alongside the PDF report, creating a complete package with both the human-readable document and the source data. This level is ideal for comprehensive document packages and data submissions.
Security & Privacy
Files are transferred over HTTPS, and output links expire after the configured download window. We do not read, store, or share your documents with third parties. Your archival documents are handled securely.
Frequently Asked Questions
What is the difference between PDF/A levels?
PDF/A-1b is basic archiving with embedded fonts. PDF/A-2b adds transparency and layer support. PDF/A-3b allows embedding external files within the PDF package. Choose based on your specific archiving needs.
Will my PDF look different after conversion?
PDF/A conversion preserves all visible content. Fonts are embedded to ensure consistent rendering, but the document appearance remains the same as the original without any visual changes.
Can I edit a PDF/A file?
PDF/A is designed for archival and is read-only by nature. Some PDF editors may restrict editing of PDF/A files to maintain compliance with the archival standard.
Which PDF/A level should I choose?
PDF/A-1b is sufficient for most text documents. Choose PDF/A-2b if your document contains transparent objects. Use PDF/A-3b if you need to embed related files within the PDF.
Is PDF/A smaller than regular PDF?
PDF/A files may be slightly larger because fonts must be embedded in the document rather than referenced externally. The size increase is usually minimal.
Is PDF/A conversion free?
Yes, converting PDF to PDF/A is free for basic use. No registration or software installation is required for basic use.