| Creo: Developers of plug-ins, such as Pagelet, and PDF Seps2Comp. Plug-ins allow to transform separated PDF files into composite documents. |
| Datafarm Inc.: Developers of Acrobat Plug-ins and other PDF tools. |
| Evermap: Provide AutoSplit plug-in for Adobe Acrobat, used for document splitting and page extraction. Includes news, downloads, support pages, and company profile. |
| FileOpen Systems Inc.: A plugin to Adobe Acrobat that helps ensure that a digital publication is not redistributed or uploaded to another website. |
| IntelliPDF: Adds Bates Stamps to PDF documents. |
| Lantana Research Software: Developers of plugin tools for creating layers, increasing form usability, color production printing, image editing. |
| LD-Converter: Plug-in for Acrobat that converts PDF to text, HTML, bmp and jpg. Software descriptions, screenshots, FAQs, demo downloads, and contact details. |
| LineType Software, Inc.: LineScale plug-in for Acrobat and Acrobat Reader is the premier distance and area measuring tool for PDF files, offering unique features in an easy-to-use interface. Electronic document solutions and consulting services for architects, engineers and contractors. |
| Mapsoft Computer Services: Details of the Acrobat and PageMaker Plug-ins, and custom development services available. |
| Merlin Open Systems: Developer of cross-platform Adobe Acrobat plugins. |
| PDF Snake: Adobe Acrobat plugin that adds imposition, scaling, watermarking and other features. |
| PDFtoALL: Plug-in that converts PDF files to text, HTML, BMP, JPG and PNG. Information and demonstrations available for download. |
| Quite Software: Developers of plugins, such as Quite A Box Of Tricks, Quite Imposing, and Quite RGBGone. |
| ReaderSave: Plug-in to retrieve past Adobe Reader form data |