PDFSign (Function)

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PDFSign (Function)

In french: PDFSigne

Applies an approval signature to an existing PDF.

Example

MySignature is pdfSignature
MyCertificates is array of Certificates = CertificateLoad("test.pfx", "pwd")
MySignature..Certificate = MyCertificates[1]
// It is an approval signature, its
// minimum size must be set to 1X1
MySignature.X = 1
MySignature.Y = 1
MySignature.Height = 1
MySignature.Width = 1
PDFSign("mypdf.pdf", MySignature)

Syntax

<Result> = PDFSign(<PDF file to sign> , <Signature> , <Signature mode>)

<Result>: Boolean

True if the PDF file was signed,
False otherwise.

<PDF file to sign>: Character string

Name and path of PDF file to sign.

<Signature>: pdfSignature variable

Name of pdfSignature variable corresponding to the description of the approval signature that will be applied to the PDF file.

<Signature mode>: Integer constant

Versions 25 and later
Signature format to use:
PAdES (PDF Advanced Electronic Signatures):
iSignature_CAdES_B CAdES Basic (CMS Advanced Electronic Signature).
iSignature_CAdES_C CAdES C (CMS Advanced Electronic Signature).
iSignature_CAdES_T CAdES Trust token (CMS Advanced Electronic Signature).
iSignature_CAdES_X CAdES X Type 2 (CMS Advanced Electronic Signature).
iSignature_CAdES_XL CAdES XL Type 2 (CMS Advanced Electronic Signature).
Adobe signature format:
iSignature_PKCS7
(default value) PKCS7 signature format. This is an Adobe standard format not approved by the ETSI and Chorus standards.
New in version 25
Signature format to use:
PAdES (PDF Advanced Electronic Signatures):
iSignature_CAdES_B CAdES Basic (CMS Advanced Electronic Signature).
iSignature_CAdES_C CAdES C (CMS Advanced Electronic Signature).
iSignature_CAdES_T CAdES Trust token (CMS Advanced Electronic Signature).
iSignature_CAdES_X CAdES X Type 2 (CMS Advanced Electronic Signature).
iSignature_CAdES_XL CAdES XL Type 2 (CMS Advanced Electronic Signature).
Adobe signature format:
iSignature_PKCS7
(default value) PKCS7 signature format. This is an Adobe standard format not approved by the ETSI and Chorus standards.
Signature format to use:
PAdES (PDF Advanced Electronic Signatures):
iSignature_CAdES_B CAdES Basic (CMS Advanced Electronic Signature).
iSignature_CAdES_C CAdES C (CMS Advanced Electronic Signature).
iSignature_CAdES_T CAdES Trust token (CMS Advanced Electronic Signature).
iSignature_CAdES_X CAdES X Type 2 (CMS Advanced Electronic Signature).
iSignature_CAdES_XL CAdES XL Type 2 (CMS Advanced Electronic Signature).
Adobe signature format:
iSignature_PKCS7
(default value) PKCS7 signature format. This is an Adobe standard format not approved by the ETSI and Chorus standards.

Remarks

The signature applied by PDFSign is an approval signature. The PDF file can be signed and countersigned several times.
This signature must correspond to a control of PDF file (its minimum size will be set to 1 X 1 mm²). The Signature control can be invisible but we advise you to associate it with a caption or an image in order for the user to see this signature and to click it.
The encrypted PDF files (with password) are not supported.
The PDF files whose version is later than PDF 1.5 will be saved in version PDF 1.4 before they can be signed.

Caution: In order for a signed PDF file to be recognized by Acrobat, the company issuing the signature certificate must be member of AATL list (Adobe Authorized Trust List) or member of CDS program (Certified Document Services).
If the certificate is not recognized, Acrobat will display a banner saying "At least one signature presents a problem...".

Business / UI classification: Neutral code

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