Deleting duplicates in Certificate Bundle

I do have a big CA bundle certificate file and each time if i get request to add new certificate to the existing bundle i need to make sure it is not present already. How i can validate the duplicates.

The alignment of the certificate within the bundle seems to be different.

Example:
Cert 1
MIIF7DCCBNSgAwIBAgIQbsx6pacDIAm4zrz06VLUkTANBgkqhkiG9w0BAQUFADCByjELMAkGA1UE
BhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZWZXJpU2lnbiBUcnVzdCBO

Cert 2
MIIF7DCCBNSgAwIBAgIQbsx6pacDIAm4zrz06VLUkTANBgkqhkiG9w0BAQUFADCB
yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL


These are duplicates and since they are aligned differently i could not do an extract and compare.

Your suggestions and inputs are most welcome.
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