How to Create PDF/A-2a Files from InDesign and Distiller
Question details
The user wants to know if and how they can generate PDF/A-2a compliant files for archiving using Adobe InDesign or Adobe Distiller.
- Product
- Adobe InDesign / Acrobat Distiller
- Device & OS
- not provided
- Scenario
- Preparing structured and tagged documents for long-term PDF/A-2a digital archiving.
- Observed behavior
- Users cannot generate PDF/A-2a directly from Distiller because the tool does not support adding the required structural tagging for this compliance level.
Ensure your original InDesign document is properly structured using paragraph and character styles, as these structural elements are absolutely essential for generating the tags required by the PDF/A-2a standard.
Export a Tagged PDF from InDesign and Convert in Acrobat
Since Distiller cannot add document tags, you must export a tagged PDF directly from InDesign and use Acrobat's Preflight tools to finalize the PDF/A-2a conversion.
PDF/A-2a compliance strictly requires document tagging to ensure accessibility and structural integrity. Adobe Distiller functions merely as a virtual printer; it flattens the file and strips away structural metadata. Therefore, it is impossible to create PDF/A-2a files solely via a Distiller job option.
Launch Adobe InDesign and open the document you wish to archive.
Navigate to 'File' > 'Export', select 'Adobe PDF (Print)' or 'Adobe PDF (Interactive)' from the format dropdown, and click 'Save'.
In the Export PDF dialog box, locate the General tab and ensure the 'Create Tagged PDF' option is checked, then click 'Export'.
Launch Adobe Acrobat Pro and open the newly exported tagged PDF file.
Go to 'Tools' > 'PDF Standards' > 'Preflight', select the 'Convert to PDF/A-2a' profile, and click 'Analyze and fix' to validate and complete the conversion.
Create and Manage Standard PDFs with WPS Office
While InDesign is tailored for professional typesetting, WPS Office provides an accessible, all-in-one solution for creating, editing, and converting everyday office documents into highly compatible PDF files without complex configuration.
- 1. Open your document: Launch WPS Office and open your text document, spreadsheet, or presentation.
- 2. Navigate to the Export tool: Click on the 'Menu' button in the top left corner of the application interface.
- 3. Select Export to PDF: Choose 'Export to PDF' from the dropdown list to open the conversion dialog.
- 4. Generate your PDF: Adjust your export settings, such as page range or save path, and click 'Export' to generate a highly compatible PDF file.
Frequently Asked Questions
Why can't Adobe Distiller create PDF/A-2a files?
Adobe Distiller functions like a virtual printer and strips out the structural tagging (such as paragraphs, headings, and lists) required by the PDF/A-2a standard. Without these tags, it cannot generate files that meet this specific conformance level.
What is the difference between PDF/A-2a and PDF/A-2b?
PDF/A-2a requires complete structural tagging to ensure text extractability and accessibility for screen readers. In contrast, PDF/A-2b only requires visual fidelity (ensuring the document looks exactly the same over time) and does not mandate structural tags.
Can InDesign export directly to PDF/A-2a?
InDesign can export a fully tagged PDF, but it does not feature a native, one-click export preset specifically for PDF/A-2a. You must export a tagged PDF first and then use Adobe Acrobat's Preflight tools to validate and convert the file to PDF/A-2a.
Do I have to use PDF/X as an intermediate format?
No, exporting a standard Tagged PDF directly from InDesign is usually sufficient. However, if your document has complex color profiles or embedded fonts, exporting to a PDF/X standard (like PDF/X-5) can provide a reliable foundation before converting to PDF/A-2a in Acrobat.
