Insights, tutorials, and updates from the Foxit PDF SDK engineering team.
Registration-free COM allows you to use an ActiveX DLL or ActiveX Control in your application without having to register the ActiveX on the end-users machine using regsvr32. It does this by creating a manifest file which if distributed with the executable means that no registration is required. This is only supported in versions of Windows XP [...]
Under normal circumstances, a user can download and install a 30-day trial version of any Foxit product for each machine. Once that time has elapsed, the evaluation license will expire, and the software will be cease to function until it is activated by entering a full license key. If a new major update to the [...]
Foxit Quick PDF Library can be used in ASP.NET Website projects to add rich PDF features to websites. It works in much the same way as it does for regular desktop or server applications. Please note: there is a difference between a ASP.NET Website project and a ASP.NET Web Application project. This article deals with ASP.NET Website [...]
No, Foxit Quick PDF Library does not support inserting images into PDF form fields. This article refers to a deprecated product. If you are looking for support for Foxit PDF SDK, please click here.
Pages in a PDF use points (1/72 of an inch) as the default measurement units with the origin or the coordinate system at the bottom left corner of the page. The measurement units can be changed using the SetMeasurementUnits function to inches or millimetres. The origin can be set to the top-left corner of the page (or [...]
Foxit Quick PDF Library has a new rendering and printing add-on which provides much improved support for transparency, shading patterns and tiling patterns when rendering and printing PDF files. This new rendering engine is part of Foxit Quick PDF Library. It is a separate DLL which will need to be copied, loaded and then called from within your [...]
From time to time, it can be necessary to detect and process empty pages. For example, one might want to delete blank all pages or add a “This Page Intentionally Left Blank” stamp to each page. Nevertheless, detecting empty PDF pages can pose special challenges due to the nature of PDF files. Although PDF is [...]
Foxit Quick PDF Library can be used in ASP.NET projects to add rich PDF features to web apps or web sites. It works in much the same way as it does for regular desktop or server applications. We have three different tutorials which cover the different ASP.NET project types and how to use Foxit Quick [...]
Problems can arise when working with longer JavaScript strings using Foxit Quick PDF Library. Essentially, these issues occur due to the nature of Delphi, the programming language in which Foxit Quick PDF Library is written. Delphi has a hard 255-character limit for string constants, which means that longer strings can’t be used in the standard [...]
PDF is not itself a display format, but rather a container for content. Regardless of which specific technology is used, PDF files are prepared for display through a process known as “rendering”. As outlined in this blog post, this involves parsing PDF content and translating it into a form, such as an image, that can [...]