PDF/A conversion
This tool converts files to PDF/A-2b for long-term archiving. Conversion fails if strict requirements cannot be met.
Drop your PDF file here
or click to browse - up to 100 MB per file
Convert to archival PDF/A-2b format
PDF/A conversion
This tool converts files to PDF/A-2b for long-term archiving. Conversion fails if strict requirements cannot be met.
Drop your PDF file here
or click to browse - up to 100 MB per file
PDF to PDF/A
Convert standard PDFs to PDF/A for long-term archival and compliance-focused document retention.
Use one clean processing pass, then do a quick QA review before you share the result.
Repair PDF
Attempt to repair damaged or problematic PDF files to restore usability and compatibility.
Compress PDF
Reduce PDF file size online while preserving readability. Share large PDFs faster by compressing in one step.
Merge PDFs
Combine multiple PDF files into one document online. Reorder input files before merging for a clean final output.
PDF/A is an ISO standard for long-term archival of PDF files. It requires all fonts, color profiles, and resources to be embedded, ensuring the document renders consistently decades into the future.
SentryPDF converts to PDF/A-2b, which is widely accepted for archival and regulatory compliance workflows.
Not always. Files that reference external resources, contain JavaScript, or use features prohibited by the PDF/A standard may fail conversion. The tool reports errors if strict requirements cannot be met.
Yes. Many legal, governmental, and financial bodies require PDF/A for long-term record submissions. The format prevents future rendering differences caused by missing fonts or color profiles.
Yes. PDF/A files are standard PDFs and open in any PDF viewer. Some viewers display a banner noting the file is in archival mode.
Browse additional tools for conversion, compression, editing, OCR, and security.