Nitro PDF Professional User Guide
Nitro PDF Professional User Guide
Nitro PDF Professional User Guide
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12. Forms<br />
© 2008 <strong>Nitro</strong> <strong>PDF</strong> Software<br />
Digital signatures 69<br />
commenting, form filling and signing). If any change is made to the document after certification, its<br />
certificate becomes invalid.<br />
· Only allow form fill-in actions. Disables all tools that can be used to change a file, except for the<br />
form filling and signing tools. An example of when you would use this is when collecting information<br />
from users via an official form that requires the user to enter their information but must not allow<br />
them to change the form you have designed.<br />
· Only allow commenting and form fill-in actions. Disables all tools that can be used to change a<br />
file, except for the form filling, signing, and commenting tools. An example of when you would use<br />
this is when reviewing a contract that may require signatures and comments during the reviewing<br />
stage.<br />
Why certify a document?<br />
· When you want people to be able to sign, form fill or annotate a <strong>PDF</strong> file without invalidating the<br />
certificate.<br />
· To attest you are the document’s author.<br />
· To vouch for its contents.<br />
· To specify what changes are permitted for it to stay certified.<br />
· To automatically disallow functionality such as inserting pages, changing text, and editing form field<br />
properties.<br />
Tip: <strong>PDF</strong> files can be certified only once, but if permissions allow, can be digitally signed many<br />
times. This is the benefit of certifying the files you author rather than just signing it.<br />
To certify a <strong>PDF</strong> document:<br />
1. On the Secure and Sign ribbon, in the Signatures group, click Certify .<br />
2. On the Certify Document dialog, choose the actions you want to permit from the Permitted<br />
actions list.<br />
3. Click Next.<br />
4. Select the digital ID with which to certify and choose whether to make the certificate visible or not.<br />
5. Click Next.<br />
6. If you chose to make the certificate visible, click on the page where you would like it to appear.<br />
7. On the Certify Document dialog, do the following:<br />
· Choose a reason for signing the file from the Reason for signing document list, or enter your own<br />
reason.<br />
· Choose to save the certification to the current document or save as a new document.<br />
· Choose how you would like the certificate should appear.<br />
8. Click Finish.<br />
Note: When sharing certified <strong>PDF</strong> files with other users, the <strong>PDF</strong> viewer they use must support<br />
the functionality for certification and signatures to work correctly. <strong>Nitro</strong> Pro, Adobe Acrobat and<br />
Adobe Reader can all share certified and signed <strong>PDF</strong> files between them.<br />
Forms are one of the most common uses of <strong>PDF</strong> documents. Using form tools and JavaScript you can create<br />
dynamic, interactive documents, and create alternatives for writing complex HTML code when hosting forms<br />
on web sites. There are seven form tools in <strong>Nitro</strong> <strong>PDF</strong> <strong>Professional</strong> used for creating <strong>PDF</strong> forms. Each tool<br />
offers a number of different settings to control form behavior and appearance.<br />
When a <strong>PDF</strong> form is opened in <strong>Nitro</strong> Pro, the Information bar (above the document pane area) appears,<br />
notifying the user that the file contains forms fields.