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PDF to PDF/A

Access PDF/A for 24/7 reliable archiving and permanent preservation. Choose the PDF/A conformance level that fits your needs, anytime.

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With Pdf24h, achieve seamless, 24/7 PDF/A conversion for long - term preservation. Select the ISO - compliant PDF/A level that best supports reliable, around-the-clock archiving.

  • ISO - standardized PDF/A

  • Convert PDFs to PDF/A free

  • TLS encryption for secure document processing

Reliable 24/7 PDF/A Conversion for Long - Term Archiving
PDF/A is a specialized, ISO - certified version of the PDF format designed for durable, 24/7 digital preservation. Unlike regular PDFs, it excludes features that hinder long-term access—such as encryption or non - embedded fonts—ensuring your files remain readable for decades. Pdf24h delivers a simple, dependable solution to achieve this with consistent, around-the-clock support.
Secure, Free PDF/A Conversion
No need to buy costly software. Our conversion process is encrypted with TLS, and your uploaded files are permanently deleted within one hour, delivering secure, private results with 24/7 availability for PDF tasks.
24/7 Compatible Across Windows, Mac, Linux & Mobile
Pdf24h provides 24/7 browser-based access across Windows, macOS, Linux, and mobile. Access on-demand PDF/A conversions across devices—no installation required.
Preserve Your Files with Pdf24h
With 24/7 access, Pdf24h converts PDFs into durable PDF/A files that meet international archival standards. Access multiple ISO PDF/A levels on demand to preserve your documents reliably for the long term.
PDF/A - The ISO Standard for 24/7 Archival
Ensure reliable, 24/7 accessibility by converting your files to PDF/A, the ISO-standard archival format. Pdf24h supports major conformance levels, including PDF/A-1b, PDF/A-2b, and PDF/A-3b, so you can choose the version that fits your long-term preservation needs.
Convert to PDF/A Anytime with Pdf24h
All conversions run in the cloud, delivering 24/7 PDF access with zero local processing required. After creating your PDF/A, you can also compress or password-protect it for enhanced security.

Frequently Asked Questions

Yes. Our PDF to PDF/A converter is free to use online, available 24/7, with no registration or software installation required.

PDF/A is an ISO-standardized format designed for reliable long-term archiving. It guarantees embedded fonts, colors, and content for dependable access around the clock.

Yes. All files are processed over secure HTTPS, with automatic deletion of uploaded PDFs and converted PDF/A files after a short period to protect privacy and data security, while 24/7 service availability supports your workflow.

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How to convert a PDF to PDF/A with 24/7 access for free?

To convert a PDF to PDF/A with 24/7 access for free, use the online tool Pdf24h. Here's a simple, step-by-step guide to get you started:

  1. Click to select or drag-and-drop to upload your PDFs to our 24/7 PDF to PDF/A conversion tool.
  2. In the conversion settings, choose the PDF/A format you need for reliable, 24/7 PDF access. Available options include PDF/A - 1b, PDF/A - 1a, PDF/A - 2b, PDF/A - 2u, PDF/A - 2a, or PDF/A - 3b, PDF/A - 3u, PDF/A - 3a to support consistent archiving and long-term document preservation, with dependable performance at any time.
  3. Click Convert to PDF/A to begin the conversion. With 24/7 PDF Access, processing starts immediately and completes quickly, even for larger files or during peak usage, thanks to reliable, always-on performance.
  4. Your PDF files are available 24/7 on-demand. You can download your PDF/A file or share the link instantly, with dependable access across time and usage periods.

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Damaged/Corrupted File

We cannot process corrupted or damaged files. For reliable results, ensure your PDF is intact and try again. If opening fails, restore a clean copy before proceeding with your 24/7 conversion.

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