Convert a PDF between versions 1.4, 1.5, 1.6, and 1.7 for compatibility with older readers and archival systems.
Upload the PDF to convert
Select the target PDF version
Download the version-converted PDF
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
0 bytes uploaded. PDF Version Converter runs entirely in your browser using pdf-lib and pdfjs-dist. Your file stays on your device at all times. No data is sent to any server.
Some archival systems and legacy readers require specific PDF versions. Version 1.4 has the widest compatibility.
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Open toolConvert standard PDFs to PDF/A archival format by embedding fonts, removing external dependencies, and flattening transparency.
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