Hi Ming, just set the signature appearance like this
sap.setCertificationLevel(PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED); This disallows all changes. Visibility of a signature is done by adding visual elements. If you don't any visual element, the signature will be inivisible. Greetings Andreas ----- Original Message ---- From: mingxun <[email protected]> To: [email protected] Sent: Tuesday, March 17, 2009 3:45:56 PM Subject: [iText-questions] Add Signature to mark other fields as read only Using Adobe Professional to add a signature, there is an option to mark other fields in the form as read only after signed. Is there a way to do this using iText? Also I saw that there is a function PdfSignatureAppearance.setVisibleSignature(String fieldName) which will make a signature visible. Is there a function to hide a signature? Thanks Ming -- View this message in context: http://www.nabble.com/Add-Signature-to-mark-other-fields-as-read-only-tp22560565p22560565.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php
