Disable signature form fields only

Technical Support Apryse SDK
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1

Product: PDFTron iOS SDK

Product Version: 3.0.4-4

Please give a brief summary of your issue:
I have been trying to display the PDF viewers to users, and I want to allow them to edit all kinds of form fields except for signature fields. I used this line of code toolManager.signatureAnnotationOptions.canCreate = NO but it does not work as expected. How do I achieve the expected result?

Please describe your issue and provide steps to reproduce it:
(The more descriptive your answer, the faster we are able to help you)

Please provide a link to a minimal sample where the issue is reproducible:

2

Hello Thái,

Thank you for contacting WebViewer Forums.

To disable signature form fields, we can call the disableElements() API:

instance.UI.disableElements(['signatureFieldToolGroupButton'])

Regards,
Luke

3

Hi Luke, thank you for your reply. However, my question is about iOS SDK, not WebViewer.
I don’t know how to edit my original post but the version is actually 10.9.0

4

Thank you for reaching out for support in our forum! In order to achieve what you are trying,
Implement or override the following PTToolManagerDelegate method, and return false for signature-widget annotations.

https://docs.apryse.com/api/ios/Protocols/PTToolManagerDelegate.html#/c:objc(pl)PTToolManagerDelegate(im)toolManager:shouldInteractWithForm:onPageNumber:

To check if an annotation is a signature widget in the delegate method linked above, you could do the following:

if ([annotation IsValid] && [annotation GetType] == e_ptWidget) {
    PTWidget *widget = [[PTWidget alloc] initWithAnn:annotation];
    if ([widget IsValid]) {
        PTField *field = [widget GetField];
        if ([field IsValid] && [field GetType] == e_ptsignature) {
            // This is a signature field and widget.
            return NO; // Do not allow interaction with the signature form field widget.
        }
    }
}
return YES; // Allow interaction with the form field widget.