PDF Validator Command Line is a Command Line software which can be used to verify conformance and validate PDF/A documents. PDF Validator Command Line is also named PDF Compliance Checker Command Line. You can use it to check the compliance of PDF files you create or receive. The PDF/A, PDF/X, PDF/E standards are supported.

PDF Validator Command Line also enables users to detect problems within their PDF files that may impact the ability for other tools to process PDF files. PDF Validator is an ideal early warning solution to flag potential problems. PDF Validator offers enterprise-level reliability. Compatible with all versions of Windows systems.

=== PDF Validator Command Line highlight features:
* Detect & Analyze PDF Errors.
* Check for PDF/A Compliance.
* Support Command Line operations.
* Support all of PDF formats.
* Check that fonts are properly embedded in the document.
* Test that characters in text objects are mapped to Unicode.
* Test for, and allow the user to verify link annotation Contents (PDF/UA).
* Test for “broken” links.
* Validation of permissions dictionary.
* Checks if a PDF file is compliant with PDF/A (ISO 19005-1) specification.
* Support for all versions of PDF/A.
* Produces a detailed report of compliance violations and associated PDF objects.
* Supports automation and batch operation. PDF Validator Command Line is designed to be used in unattended mode in high throughput server or batch environments.
* Check if a PDF document meets a specific PDF/A compliance level.

=== Compliance levels in the PDF/A family:
* PDF/A-1a
* PDF/A-1b
* PDF/A-2a
* PDF-A-2b
* PDF/A-2u
* PDF/A-3a
* PDF/A-3b
* PDF/A-3u

Note: Beside the PDF/UA check, it is recommended to use the Accessibility check, which has a broader set of options to discover accessibility errors and as a good tool may help to make the document accessible and achieve PDF/UA compliance.