SignPKCS7

Sign a PDF-document using PKCS#7 digital signatures.

func (document *Document) SignPKCS7(num int32, signData []byte, pswSign string, setXIndent, setYIndent, setHeight, setWidth int32, reason, contact, location string, isVisible bool, appearanceData []byte, filename string) error

Parameters:

• num - the page number of the PDF-document
• signData - the raw bytes of the signature (PKCS#7 specification in Internet RFC 2315)
• pswSign - the password of the signature
• setXIndent - the x indent of the signature
• setYIndent - the y indent of the signature
• setHeight - the height of the signature
• setWidth - the width of the signature
• reason - the reason of a signature
• contact - the contact of a signature
• location - the location of a signature
• isVisible - the visiblity of signature
• appearanceData - the raw bytes of the graphic appearance for the signature
• filename - the new filename, with signature

Return:

• error - contains an error or nil if absent

Example:

package main

import "github.com/aspose-pdf/aspose-pdf-go-cpp"
import "log"
import "os"

func main() {
	cert, _ := os.ReadFile("sign.pfx")
	img, _ := os.ReadFile("sign.png")

	// Open(filename string) opens a PDF-document with filename
	pdf, err := asposepdf.Open("sample.pdf")
	if err != nil {
		log.Fatal(err)
	}
	// Close() releases allocated resources for PDF-document
	defer pdf.Close()

	// SignPKCS7 signs a PDF-document using PKCS#7 digital signatures
	err = pdf.SignPKCS7(1, cert, "Pa$$w0rd2023", 100, 100, 70, 100, "Reason", "Contact", "Location", true, img, "sample_SignPKCS7.pdf")
	if err != nil {
		log.Fatal(err)
	}
}