[iText-questions] problem with renamefield method

I have a PDF document that has several hundred fields. All of the field names have periods in them, such as "page1.line1.something" I want to remove these periods and replace them with either an underscore or (better) nothing at all There appears to be a bug in the itextsharp libraries where the

[iText-questions] Signing with setCertificationLevel broken in iText2.1.3

I've been using iText 2.1.2u and signing with a certification signature (certification level) using .setCertificationLevel(...) method on PdfSignatureAppearance object.  It has been working fine apart from it removing "enable usage rights in reader" setting on the PDF when enabled prior to sign

Re: [iText-questions] Signing with iText gives invalid sig when "mark read-only Signed" event set

Apologies if I wasn't clear.  The signature fields in Acrobat 8 (and from Acrobat 6 on I think) allow an option to set a list of fields ("all", "include", "exclude") to mark as read only when the signature field is signed.  Basically, it's a trigger to do something after signing the field.  For