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All-in-one subscription to edit, convert, secure, fill & sign PDFs. For individuals or small teams.
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Nitro PDF Pro
Desktop & mobile PDF editor with advanced, user-friendly features. Try free for 14 days.
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Products
PDF + ESIGN
Nitro Pro
All-in-one subscription to edit, convert, secure, fill & sign PDFs. For individuals or small teams.
Nitro Pro Business
Nitro Pro, plus advanced features, security & integrations. For larger teams and organizations.
PDF
Nitro PDF Pro
Desktop & mobile PDF editor with advanced, user-friendly features. Try free for 14 days.
Windows
|
macOS
|
iOS
eSign
Nitro Sign Premium
High-trust eSign with certificates & ID verification for regulatory requirements such as eIDAS.
Solutions
By Industry
Real Estate
Healthcare
Manufacturing
Energy
Financial Services
Professional Services
Education
Insurance
Resources
Blog
Resource Hub
Success Stories
Trust Center
Support Center
Alternative Comparisons
Plans & Pricing
Try for Free
Buy Now
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Welcome to the Nitro PDF Pro user guide
Get started by browsing the featured categories below, or use the search panel to find a specific article yourself.
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Forms
Create a barcode field in a PDF
Barcode fields translate a user’s form entries into a visual pattern that can be scanned, interpreted, and incorporated into a database. Barcodes are helpful when users submit the form on paper or by fax.
Forms
Edit Align and Space Multiple Fields
Nitro Pro allows you to select multiple form fields, meaning you can edit common appearance properties and fix alignment issues faster. You can edit the alignment via the Alignment context tab or context (‘right-click’) menu. To edit the appearance of multiple form fields, you can use the Properties context tab or Properties dialog.
Security
Document Security
Details on the security and restrictions that have been placed on a PDF can be found in the Document Properties dialog. For more information on various PDF permissions settings, refer to Permission settings.
View and Navigate PDF Files
Edit a Bookmark in a PDF
Nitro Pro comes with a complete set of tools for editing, ordering, grouping, altering the appearance of, and deleting the bookmarks in your PDF documents.
View and Navigate PDF Files
Edit a link in a PDF File
You can control what links look like, including what color they are when visible, as well as how the link will appear when clicked on. If you need to you can also lock your links so each link keeps its position and properties.
JavaScript Objects
Event object
Represents a PDF form field, and this object contains methods and properties that provide a way to modify form fields (like you would visually with the form field tools) via JavaScript code.
Forms
Fill-out and save forms
Nitro Pro lets you fill-out interactive PDF forms, which are designed for you to enter data into fields. To fill-out the fields of an interactive form, use the Hand Tool to click into the form fields.
Forms
Form Design in a PDF
The form creation tools are all located on the Forms ribbon in Nitro Pro. There are several field types available; for each field type, you can set a variety of options through the form field Properties dialog box or ribbon.
JavaScript Objects
Global object
Allows you to share data across an instance of the PDF viewing application (i.e. data can be accessed from within any of the open documents).
Review and Comment
Hide or show all comments
To view a PDF document without comments displayed on the page, you can hide all comments at once, rather than closing or deleting each comment manually. The same control lets you show all comments.
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