If I understand your query correctly (after translating in English) you are willing to create PDF/A documents?
As your are subscriber of Creative Cloud complete membership, and using the Acrobat DC application that can be achieved.
2-Then select File>Save AS> Choose a different folder (to save it)> Select PDF/A as file type-
3- Click on settings icon shown in the picture below to get the further list to convert a PDF/A file to PDF/A-1a
You can also refer to the related help document-PDF/X-, PDF/A-, and PDF/E-compliant files (Adobe Acrobat Pro)
Hope this helps.
As suggested in the solution provided above, you can save the PDF to PDA/A-1a by selecting the very first option here-
This is what you were looking for?