Checking for Form Field Flags such as Required, Read-Only, Rich Text

As of v2018R1, it is possible to get information about form field flags in Qoppa’s PDF libraries and components. These flags represent some of the field properties that can be found under the form field properties in PDF editing applications and our PDF components. Field Flags Available Interface FormField (available in all fields) FormField.FF_READONLY -The […]

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LiveCycle Dynamic XFA Forms Support in Qoppa’s PDF Library

LiveCycle XFA forms are complex and uncommon PDF forms that are designed to be rendered dynamically from the drawing and layout information present in the XFA definition. This kind of forms are not widely supported and only a couple of vendors are able to render them. Adobe has moved away from dynamic XFA forms and […]

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Code Sample: Flatten PDF Interactive Form Fields in Java

This Java program “flattens” field data into the PDF content layer using Qoppa’s PDF library jPDFProcess. This means that the field contents will become part of the PDF content and so the document will not be editable anymore. Click here to view java code. jPDFProcess supports many PDF functions to work with PDF documents within Java. […]

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Non-Latin character in form fields

Q: When I type in non-Latin characters in interactive PDF form fields, some characters vanish or disappear. Why is that so? What can I do to fix this? A: The problem with non-Latin characters (Greek, Russian, Arabic, Hebrew) disappearing after being entered in an interactive text field has to do with the way that fonts […]

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XFA support in Qoppa’s PDF library products

Q: Do Qoppa’s PDF library products support XFA in interactive forms? A: Qoppa’s libraries support the following technology for interactive forms: Acroform PDF Forms: Full support in all our library products for parsing, importing and exporting data, rendering, filling forms visually,  assembling, etc…. A Mix of Acroform and Static XFA PDF Forms: Full support in […]

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JavaScript Support in Java PDF Libraries and Components

Q: Does Qoppa’s PDF library products support JavaScript? A: Yes, Qoppa’s Java PDF SDK API has support JavaScript. How is JavaScript used in PDF documents? Mostly, JavaScript is used in interactive PDF forms in field actions to calculate the value of fields, validate field data to prevent invalid entry and format special fields such as dates, […]

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