Ignore/Skip PDF Digital Signature Validation

[Tjunas]

Hi Spire Team,

I have a document which contains 20+ valid digital signatures so when opening the document with spire it takes longer depending on the amount of signatures. For my purposes I don't care if the signature is valid or not. Is there a way in spire to skip the validation process and just open the document?

[Betsy]

Dear Tjunas,

Thanks for your inquiry.
Sorry that there is no method to skip PDF digital signature validation when opening the document at present. We will investigate this issue, if this can be done, we will inform you. Your sample document will help us to do the investigation quickly and we promise to keep it confidentail and not to use it for any other purpose. Thank you in advance.

Sincerely,
Betsy
E-iceblue support team

[Tjunas]

Hi Betsy,

I have attached a 20 page test document which contains 13 digital signatures

[Betsy]

Dear Tjunas,

Sorry for late reply as weekend and thanks for your document.
I have forwarded your requirement( skip PDF digital signature validation when opening the document ) to our Dev team. If there is any news, we will let you know.
Also,I opened the document with Spire.Office V2.14.1(Spire.Pdf.dll V3.7.86), doc.LoadFromFile(FilePath + "TestDoc.docx.pdf"), but didn't notice the opening the document with spire it takes longer issue, it only took 1.4s.

Sincerely,
Betsy
E-iceblue support team

[Betsy]

Dear Tjunas,

After investigation, Spire.PDF doesn't verify the digital signature when opening the document. Also, I tested the file you provided, but didn't notice when opening the document with spire it takes longer issue, so the time issue is not caused by the digital signature. Could you please provide us the document which encountered the issue you mentioned and the codes you were using ? It would be very helpful to investigate this issue, thanks.

Sincerely,
Betsy
E-iceblue support team