Tryanks/pdfsign
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Valid signature

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This commit is contained in:
Jeroen Bobbeldijk
2017-07-11 08:21:18 +02:00
parent db69b6a4c0
commit 7b19471330
9 changed files with 104 additions and 24 deletions
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12
sign/pdfvisualsignature.go
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@@ -28,10 +28,16 @@ func (context *SignContext) createVisualSignature() (visual_signature string, er
rootPtr := root.GetPtr()
context.CatalogData.RootString = strconv.Itoa(int(rootPtr.GetID())) + " " + strconv.Itoa(int(rootPtr.GetGen())) + " R"
page := root.Key("Pages").Key("Kids").Index(0).GetPtr()
visual_signature += " /P " + strconv.Itoa(int(page.GetID())) + " " + strconv.Itoa(int(page.GetGen())) + " R"
first_page, err := findFirstPage(root.Key("Pages"))
if err != nil {
return "", err
}
visual_signature += " /F 4"
first_page_ptr := first_page.GetPtr()
visual_signature += " /P " + strconv.Itoa(int(first_page_ptr.GetID())) + " " + strconv.Itoa(int(first_page_ptr.GetGen())) + " R"
visual_signature += " /F 132"
visual_signature += " /FT /Sig"
visual_signature += " /T " + pdfString("Signature")
visual_signature += " /Ff 0"