iText Knowledge Base
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Before we start: Overview of the classes and interfaces
When we talk about iText 7's basic building blocks, we refer to all classes that implement the IElement interface. iText 7
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Chapter 4: Creating reports using pdfHTML
https://api.itextpdf.com/iText7/dotnet/7.1.9/interfacei_text_1_1_kernel_1_1_pdf_1_1_canvas_1_1_draw_1_1_i_line_drawer.html) interface, bu
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Use cases
Invoices The ZUGFeRD https://www.ferd-net.de/standards/zugferd.html invoicing standard uses a combination of PDF/A-3
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Release iText 7.0.0
and support for the ZUGFeRD digital invoicing standard. “iText 7 has also been designed with PDF 2.0 in mind,” adds Mr. Lowagie
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When Contracts aren't Smart Contracts
that also contain machine-readable information allowing automated processing of the document. The ZUGFeRD standard, for example
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Part I - Overview and Simple Cases
depends very much on your specific signing device, iText here offers an interface you can implement accordingly. Actually
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Using iText 7 and AWS KMS to digitally sign a PDF document: Part 5
for the actual signing but an instance of ISignatureFactory; that interface represents a factory of IStreamCalculator instances
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How to define different border types for a single cell?
one more example : Extra example: Using an interface to define the line dash: In the CustomBorder3
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Installing iText 7 pdf2Data for Java
https://pdf2data.online/videos section on the pdf2Data demo site to quickly get familiarized with the user interface. License key If you
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Installing iText 7 pdf2Data for .NET
https://pdf2data.online/videos section on the pdf2Data demo site to quickly get familiarized with the user interface. License key If you
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Chapter 5: Custom tag workers and CSS appliers
https://api.itextpdf.com/pdfHTML/dotnet/2.1.6/interfacei_text_1_1_html2pdf_1_1_attach_1_1_i_tag_worker_factory.html) interface. There is
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Basic Concepts (Glossary)
Electronic Signatures (PAdES) ZUGFeRD: a standard for invoices that combines PDF/A-3 and the UN/CEFACT Cross Industry Invoice (CII
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How to check for an event and remove it?
https://stackoverflow.com/questions/23087035/checking-for-an-event-in-itextsharp by IyaTaisho https://stackoverflow.com/users/1631060/iya
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What does PDF 2.0 stand for?
processes for converting paper or electronic documents to the PDF file format; specific technical design, user interface
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How to add a text to the left and to the right in a header?
of the IEventHandler interface like this: protected class HeadertFooterHandler implements IEventHandler { protected String info; public v
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Why do I get a StackOverflowException in the OnEndPage() event handler?
only. In iText 7 we implement the IEventHandler interface and add it to the PdfDocument like this: pdfDoc.addEventHandler
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How to rotate a page while creating a PDF document?
would! You can achieve what you want in iText 7 with the EventHandler interface: protected class PageRotationEventHandler
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How can I add an image to all pages of my PDF?
added once; after all: you're adding it only once. In iText 7 you should implement IEventHandler interface: public class
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How to add a rectangle to every page of a document?
interface (if you are using iText 7) and add your code to the handleEvent() method. public class RectangleEventHandler implements
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.How to add a border to a PDF page? vLatest
the IEventHandler interface and add it to the pdfDoc on the start page event: pdfDoc.addEventHandler(PdfDocumentEvent.START_PAGE, new
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How to add a border to a PDF page?
the IEventHandler interface and add it to the pdfDoc on the start page event: pdfDoc.addEventHandler(PdfDocumentEvent.START_PAGE, new
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How to add a table as a header?
https://github.com/itext/i7js-examples/blob/develop/src/main/java/com/itextpdf/samples/sandbox/events/TableHeader.java example for iText
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How to generate a report with dynamic header in PDF using iText 7?
a custom implementation of the IEventHandler interface and override the handleEvent() method: protected class
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pdfRender: WEBP format support added
); } } </div> </div> We do not currently have a pdfRender .NET library available, however we do have a CLI (command line interface
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Using iText 7 and AWS KMS to digitally sign a PDF document: Part 3
IExternalSignature interface for the purposes of signing a PDF using an AWS KMS Key Pair. In the constructor we select a signing algorith
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.Release pdfHTML 4.0.0 vLatest
Changes Bump to .NET Framework 4.6.1 New Features Allow closing empty layout document without exceptions Introduce interface
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Release pdfHTML 4.0.0
Changes Bump to .NET Framework 4.6.1 New Features Allow closing empty layout document without exceptions Introduce interface
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iText 7: Jump-Start Tutorial for .NET
different compared to iText5. iText 7 brings: a complete revision of all main classes and interfaces to make them more logical
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iText 7: Jump-Start Tutorial for Java
different compared to iText5. iText 7 brings: a complete revision of all main classes and interfaces to make them more logical
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iText 7.1 - Migration guide for Java
, interface inheritance (and more) in com.itextpdf.kernel.pdf.tagging and com.itextpdf.kernel.pdf.tagutils to allow the improvements
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iText 7.1 - Migration guide for .NET
types, argument lists, interface inheritance (and more) in iText.Kernel.Pdf.Taggingand iText.Kernel.Pdf.Tagutils to allow
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How can I log the number of documents / bytes I've processed?
is an implementation of the Counter interface that writes information to the console (System.out): CounterFactory.getInstance
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Evaluating JS with pdfHTML
(); // Spin up the browser in "headless" mode, this way Selenium will not open up a graphical user interface. options.addArguments
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Volume Counter FAQs
. Statistics won't be carried over if the application shuts down. Is the volume counting interface safe to use in a fully closed
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Why is my content overlapping with my footer?
to learn how to add events in iText 7. You should override the handleEvent() method in IEventHandler interface and assign
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How to get the co-ordinates of an image?
the IEventListener interface. In that helper class the eventOccurred() method is implemented like this: public void eventOccurred
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How to set a fixed background image for all my pages?
. In iText 7 the idea is to create an implementation of the IEventHandler interface and override the handleEvent() method: public
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Chapter 7: Creating PDF/UA and PDF/A documents
: there's a German standard for invoicing called ZUGFeRD
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Chapter 7: Creating PDF/UA and PDF/A documents | .NET
and PDF/A, and even about other sub-standards. For instance: there's a German standard for invoicing called ZUGFeRD
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Using iText 7 and AWS KMS to digitally sign a PDF document: Part 2
interface ContentSigner. This example is Java-only, since our .NET version of CertificateUtils from Part 1 doesn’t use BouncyCastle
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How to fix the orientation of a PDF page in order to scale it?
be used to scale down pages, keeping the original orientation. This example implements the IEventHandler interface: protected
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Chapter 3: Using ILeafElement implementations
()); anchor.setTabAnchor(' '); tabstops.add(anchor); A tab leader is defined using a class that implements the ILineDrawer interface. We a
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Release iText 7.1.2
and improving the interface. The SVG module is part of iText 7.1 Community and available on Maven and Nuget. For an overview of what
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Release iText 7.1.11
now have a CLI (Command Line Interface) wrapper around pdfRender, so you can use it outside of a Java only environment. iText
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Chapter 4: Making a PDF interactive
user interface. You could also create such a form programmatically, but there are very few use cases that would justify using
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Chapter 4: Making a PDF interactive | .NET
, the form will be created manually, for instance using Adobe software, LibreOffice, or any other tool with a graphical user interface
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Release iText Core 7.2.0
#getColorSpace to #getColorEncodingComponentsNumber . New Features Unified License Mechanism Introduce interface of typography
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Chapter 7: Handling events; setting viewer preferences and printer properties
need to look at the IEventHandler interface to find out. In the previous chapter, we changed a viewer preference so
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How to use a Digital Signing Service (DSS) such as GlobalSign, with iText 7
the IExternalSignature or IExternalSignatureContainer interfaces which actually compute the signature from the passed document's byte arr
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Chapter 1: Hello HTML to PDF
https://api.itextpdf.com/pdfHTML/dotnet/2.1.6/classi_text_1_1_html2pdf_1_1_html_converter.html#a9cf6ee51d8ca2441f0ccc9f80e67f9ed method.
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Chapter 5: Adding AbstractElement objects (part 2)
interface. This interface defines methods such as setDocument(), isComplete() and flushContent() that are used internally by iText
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Part III - PKCS#11
https://www.opendnssec.org/softhsm/is an implementation of a cryptographic store accessible through a PKCS #11 interface. You can
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Chapter 3: Using renderers and event handlers
IEventHandler, an interface with a single method: handleEvent(). This method will be triggered every time an event of type
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Chapter 3: Using renderers and event handlers | .NET
MyEventHandler to the PdfDocument. Our MyEventHandler implementation implements IEventHandler, an interface with a single method
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Chapter 6: Reusing existing PDF documents
of the IPdfPageExtraCopier interface that makes sure that the two different forms are merged into one single form. Merging two forms isn'
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Chapter 6: Reusing existing PDF documents | .NET
is an implementation of the IPdfPageExtraCopier interface that makes sure that the two different forms are merged into one single form
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Chapter 4: Adding AbstractElement objects (part 1)
of the implementations of the ILineDrawer interface. We set its color to red and we use this ILineDrawer to create a LineSeparator instan
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