PDF files¶

Formats for archiving:

• pdf/a-1 (a or b)
• pdf/a-2 (a, b or u)
• png (Portable Network Graphics) - only suitable for graphics, does not support EXIF metadata

Accepted formats (i.e. require further conversion by ARCHE):

• all other pdf variants

More information:

• https://www.ianus-fdz.de/it-empfehlungen/pdf-dokumente
• https://guides.archaeologydataservice.ac.uk/g2gp/TextDocs_Toc
• PDF Association: http://www.pdfa.org/
• https://www.pdf-tools.com/public/downloads/whitepapers/whitepaper-pdfa-de.pdf

Software for conversion:

• Adobe Acrobat
• LibreOffice/ OpenOffice
• MS Office
• many more

Software for validation and conformance checking:

• verapdf (https://software.verapdf.org/) How toHow to
  1. download and install program
  2. Single file check:
     • Use verapdf-gui.bat which gives you a GUI
     • Or use CLI
  3. Batch file check in folder with subfolders:
     1. Use CLI (in Windows open e.g. with windows+R then type cmd and hit enter
     2. Navigate to folder containing verapdf.bat
     3. Start verapdf with command and also write output to file for saving
        

        verapdf --recurse Y:\ARCHE\staging\ThunauKamp_16335\data\Kampagne_01_1965-1984 > veraPDF_Thunau.xml
        

  More documentation:

  • https://docs.verapdf.org/cli/
  • https://docs.verapdf.org/cli/validation/
  • https://docs.verapdf.org/cli/config/
  Meaning of ErrorsMeaning of Errors
  • All properties specified in XMP form shall use either the predefined schemas defined in the XMP Specification, ISO 19005-1 or this part of ISO 19005, or any extension schemas that comply with 6.6.2.3.2.
    • https://github.com/veraPDF/veraPDF-validation-profiles/wiki/PDFA-Parts-2-and-3-rules#rule-6623-7
    • if valid with preflight, but not with verapdf see: https://github.com/veraPDF/veraPDF-library/issues/676 -> fix unknown at the moment (2020-01-28)
• Adobe Acrobat Preflight (https://software.verapdf.org/) How toHow to
  • Single: Preflight GUI; see https://helpx.adobe.com/acrobat/user-guide.html?topic=/acrobat/morehelp/preflight_acrobat_pro_.ug.js
  • Batch: Create droplet; see https://helpx.adobe.com/acrobat/using/automating-document-analysis-droplets-or.html (only works for files in one folder, no subfolders)