September 2013

There are two main reasons Adobe Reader and Adobe Acrobat will prompt you to save changes to a file after opening it. The PDF was in some way corrupt and Adobe Reader / Adobe Acrobat automatically repaired it without showing you a warning message. As a result of the automatic repair, the Save button is […]

As well as enabling you to generate form fields and fill form fields, Foxit Quick PDF Library makes it easy to extract form field data or information about form fields from PDF files. In the sample code below we demonstrate how to iterate through each page in a PDF to extract information about all of […]

A form field must have an appearance stream associated with it in the PDF in order for the form field to be visible when the PDF is viewed or printed. Appearance streams control the appearance of widget annotations and allow them to be presented in visually different ways to reflect user interactions. When creating form […]

Creating PDF forms programmatically is easy with Foxit Quick PDF Library. In the sample code below we show you how to create text, checkbox and radio button form fields. A list of all form field functions available in our PDF SDK can be found in our form field function reference. PDF form fields need appearance […]

If you’re experiencing issues with text not appearing correctly or in the right location on the page after using a function such as DrawText then calling the NormalizePage function may resolve this issue for you. When you create a new PDF it will start off with the origin point (0,0) in the bottom left corner, […]

The DLL edition of Foxit Quick PDF Library includes support for 32-bit and 64-bit applications. If you’re absolutely sure that you will only want to use the 32-bit version or the 64-bit version then you can just hard code in the version that you want to use. 32-bit DLL DPL = New PDFLibrary("DebenuPDFLibraryDLL1312.dll") 64-bit DLL DPL […]

The DLL edition of Foxit Quick PDF Library includes support for 32-bit and 64-bit applications. If you’re absolutely sure that you will only want to use the 32-bit version or the 64-bit version then you can just hard code in the version that you want to use. 32-bit DLL PDFLibrary DPL = new PDFLibrary("DebenuPDFLibraryDLL0916.dll"); 64-bit […]

The PDF specification supports JPEG data directly, so you can just put the JPEG directly into the PDF. But it doesn’t support PNG data directly so the image data must be read out of the PNG image and only the necessary parts added into the PDF. For the image data itself, the way a PNG […]

Here are some instructions on how to use the DLL edition of Foxit Quick PDF Library with Visual Basic .NET within Visual Studio. This answer applies to Visual Studio 2003 through to Visual Studio 2013. To make life easier, the DLL edition of Foxit Quick PDF Library includes an import file for use with Visual Basic. […]