Insights, tutorials, and updates from the Foxit PDF SDK engineering team.
When using the ActiveX edition of Foxit Quick PDF Library in Visual Studio it is possible to come across this error message: Ambiguity between class ‘DebenuPDFLibraryAX1014.PDFLibrary’ and interface ‘DebenuPDFLibraryAX1014.PDFLibrary’ As the error message suggests Visual Studio is confused because it has found two references to “DebenuPDFLibraryAX1014.PDFLibrary”. One is coming from the Foxit Quick PDF Library [...]
This general form of message in Delphi indicates a referencing error. In essence, it is produced when Delphi settings on the IDE or Project level contain references to multiple versions of the same library. Specific examples include: “Unit QuickPDF0724 was compiled with a different version of Printers.TPrinter” “Unit QuickPDFExtra was compiled with a different version [...]
FireMonkey is a modern cross-platform GUI framework developed by Embarcadero Technologies for Delphi and C++ Builder. The Delphi edition of Foxit Quick PDF Library is fully compatible with FireMonkey applications for Windows and Mac development through the Delphi IDE. Foxit Quick PDF Library does not currently support iOS and Android. This article refers to a deprecated [...]
With a DLL there are a few different ways of handling memory. Many libraries ask the user to create the buffer but with the DLL and LIB editions of Foxit Quick PDF Library the library itself maintains the buffer. So if you call a certain function that returns a string then that memory will be kept [...]
The performance of PDF generation depends on both the volume of data being processed (i.e., source input) and the specific code used. Using Foxit Quick PDF Library, PDF generation is done entirely in memory. This means that, when working with longer files, performance can often be increased by breaking up the generation process. This involves saving [...]
Creating tables with text formatted using standard HTML tags is straightforward using Foxit Quick PDF Library. After positioning and creating the table, set the default HTML styles for the specific HTML tags to be used for formatting, then the content can added using the SetTableCellContent function. Some sample Delphi code for creating and formatting a PDF [...]
Generating PDF files is easy using Foxit Quick PDF Library. In this example we will demonstrate how to programmatically create an invoice as a PDF. In this example we’ll use a range of functions to create the content for the page. The company logo is created using paths, but that section of code could be [...]
In this post I would like to show you how easy it is to render a page from a PDF onto a graphic surface using Delphi and Foxit Quick PDF Library. The graphic surface in the Windows operating system is called a Device Context handle (DC). Foxit Quick PDF Library contains two different functions that can help [...]
Adding images to PDF files is simple using the PDF API available with Foxit Quick PDF Library.
Atempting to use Foxit Quick PDF Library without a license key, with an expired trial license key or with an invalid license key, will result in the follow functions being being blocked: DAOpenFile GetInformation LoadFromStream LoadFromString MergeDocument NewDocument SaveToFile SaveToString SecurityInfo EncryptFile DecryptFile AnalyseFile MergeFiles MergeStreams MergeFileListFast ExtractFilePageContent ExtractFilePageText ExtractFilePages GetFileMetadata Check the result of the [...]