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 ...

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...

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 ...

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 ...

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...

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...

Foxit Quick PDF Library Lite is an ActiveX and so does not require an Instance ID. The Instance ID is only required by the DLL edition of the commercial version of Foxit Quick PDF Library. In addition, you do not need to...

Foxit Quick PDF Library can render a PDF as an image so that you can place it in your .NET application. Sample code using C# is provided below. private void Form1_Load(object sender, EventArgs e) { // Remember to initialize t...

Foxit Quick PDF Library lets you add visual digital signatures to PDF files programmatically with a few simple lines of code. It lets you sign existing signature form fields or will automatically create a signature form field...