Import Certificates

Import missing root or intermediate certificate material into pdfcpu’s local certificate store.

Imported certificates are stored below .../pdfcpu/certs and are used by subsequent signature checks for local chain building.

pdfcpu certificates import inFile...

Arguments

name	description	required
inFile	certificate files: `.pem`, `.p7c`, `.cer`, `.crt`	yes

Example

If a signature chain cannot be checked because a trusted root or intermediate certificate is missing, import the missing certificate material into pdfcpu.

$ pdfcpu certificates import hr.p7c
hr.p7c: 156 certificates
imported 156 certificates

Importing certificates also parses them, meaning pdfcpu ensures it can handle the certificate file and any involved certificate algorithms. This is important because these evolve over time and corresponding support will need to be implemented after the fact.

Popular PDF viewers can export their root CAs, but you have to make sure you are not violating any usage restrictions before importing them into pdfcpu.

Once your certificates are imported, you are free to move them around within pdfcpu/certs, including creating special folders.