PDF to PDF/A Converter
Transform your PDF into a PDF/A file, the ISO-standardized format for long-term document archiving. Your formatting is preserved for future access.
How to Convert PDF to PDF/A
Upload your PDF file by dragging it into the drop zone or clicking to browse.
Review the file information displayed on screen.
Click "Convert to PDF/A" to start the conversion process.
Your PDF/A file downloads automatically. Click "Download Again" if needed.
Why Convert to PDF/A?
Long-Term Archiving
PDF/A is the international standard (ISO 19005) for preserving documents. It ensures your files remain readable for decades, regardless of software changes.
Legal Compliance
Many government agencies, courts, and organizations require PDF/A format for official document submissions and record-keeping.
Self-Contained Documents
PDF/A embeds all fonts, colors, and metadata. No external dependencies means your document always displays correctly.
Complete Privacy
Your files are processed entirely in your browser using JavaScript. Nothing is uploaded to any server. Your documents stay on your device.
Frequently Asked Questions
What is the difference between PDF and PDF/A?
PDF/A is a subset of PDF designed specifically for long-term archiving. It requires all fonts to be embedded, prohibits encryption and JavaScript, and includes standardized color profiles and metadata to ensure the document renders identically in the future.
Which PDF/A version does this tool produce?
This tool produces PDF/A-3b compliant files. PDF/A-3b is the most flexible conformance level, allowing embedded attachments while ensuring visual reproducibility of the document.
Will my PDF look different after conversion?
No, the visual content of your PDF remains unchanged. The conversion adds metadata, a color profile, and document structure tags without modifying the actual page content.
Is my file uploaded to a server?
No. All processing happens locally in your web browser using JavaScript. Your file never leaves your device, ensuring complete privacy and security.
What is the maximum file size supported?
You can convert PDFs up to 100 MB. All processing happens locally in your browser, so conversion speed depends on your device's performance.