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PDF to PDF/A
Enable large-scale PDF/A archiving for reliable, permanent preservation. Select the PDF/A conformance level that matches your enterprise needs.
Select PDF files
or drop PDF here
With PDFBig, convert standard PDFs to the PDF/A format with precision and speed for long-term preservation. Select the ISO-compliant PDF/A level that best matches your enterprise archival strategy.
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ISO - standardized PDF/A
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Convert PDFs to PDF/A free
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TLS encryption for secure document processing
Enterprise-grade PDF/A Conversion for Long-Term, Scalable Archiving
PDF/A is a specialized, ISO-certified version of the PDF format engineered for digital preservation. Unlike standard PDFs, it eliminates non-archival features-such as encryption or embedded fonts-ensuring decades-long readability. PDFBig provides a streamlined, scalable path to durable archival capability.
Secure, Free PDF/A Conversion
Unleash Big PDF Capabilities with enterprise-grade security: no costly software required. Our TLS-encrypted conversion pipeline scales with demand, and your uploaded files are permanently purged within one hour, ensuring safety, privacy, and auditable compliance.
Big PDF Capabilities: Works Across Windows, macOS, Linux & Mobile
With Big PDF Capabilities, PDFBig delivers seamless browser-based performance across Windows, macOS, Linux, and mobile devices. Handle large PDFs with speed and reliability; convert to the archival PDF/A format instantly - no installation required.
Preserve Your Files with PDFBig
Harness Big PDF Capabilities with PDFBig to produce durable PDF/A files that meet international archival standards. Select from multiple ISO PDF/A levels and ensure long-term durability, scalability, and accessibility.
PDF/A - ISO Standard for Scalable, Durable Archival Integrity
Guarantee enduring accessibility by converting to PDF/A, the official ISO-standard archival format. PDFBig supports major conformance levels - including PDF/A-1b, PDF/A-2b, and PDF/A-3b - empowering you to select the version that meets your preservation and scalability requirements.
Convert to PDF/A Anytime with PDFBig
Leverage Big PDF Capabilities in the cloud: all conversions run in scalable cloud infrastructure, freeing your device from processing load. After generating your PDF/A, you can compress or password-protect it to reinforce protection and performance at scale.
Frequently Asked Questions
Yes. Our online PDF to PDF/A converter is free to use. Seamlessly convert PDF files to the PDF/A standard with no registration or software installation required, unlocking Big PDF Capabilities at scale.
PDF/A is an ISO-standardized format engineered for enduring, long-term document archiving. It guarantees embedded fonts, colors, and content for reliable future access, enabling stable, scalable archival readiness in Big PDF Capabilities.
Yes. Our workflow operates with secure HTTPS encryption and enterprise-grade privacy. Uploaded PDFs and converted PDF/A files are automatically deleted from our servers after a short retention period to ensure privacy and security at scale, supporting Big PDF Capabilities.
How to Unlock Big PDF Capabilities: Convert a PDF to PDF/A for Free
To convert a PDF to PDF/A at scale, use the online tool PDFBig. Here’s a step-by-step guide to unlock Big PDF Capabilities:
- Click to select or drag-and-drop to upload your PDFs into our scalable PDF to PDF/A conversion engine - engineered for speed, reliability, and big-file performance.
- In the conversion settings, select the PDF/A format that meets your archival and preservation requirements. For scalable, enterprise-grade workloads, available options include PDF/A - 1b, PDF/A - 1a, PDF/A - 2b, PDF/A - 2u, PDF/A - 2a, PDF/A - 3b, PDF/A - 3u, and PDF/A - 3a, enabling robust long-term document fidelity at scale.
- Click Convert to PDF/A to begin the transformation. Designed for high-throughput, this step starts swiftly for standard files and scales to maintain throughput during peak loads.
- Your PDF/A assets are prepared for immediate delivery at scale. Download the PDF/A file or share a secure link to enable enterprise-grade collaboration.
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Damaged/Corrupted File
Cannot process corrupted or damaged files. For large-scale workflows, verify integrity with a trusted PDF reader. If the file cannot be opened, it is likely compromised. Restore the file and retry to preserve performance and reliability at scale.
