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Draw vector graphics to scale using a descriptive language
Drawj2d creates technical line drawings using a descriptive language. It writes pdf, svg, eps, emf and dxf vector graphics or png images. It runs on all platforms that run Java. It is inspired by Asymptote but with a tcl-like syntax and 2D only.
The project Ada Bar Codes provides a framework for generating various types of bar codes (1D, or 2D, like QR codes) on different output formats and devices.
Alire crate: https://alire.ada.dev/crates/bar_codes
Mirror: https://github.com/zertovitch/ada-bar-codes
Pdf & Djvu Bookmarker is a powerful tool to create and edit outlines in Pdf and DjVu files. It is based on DjVuLibre, iTextSharp and TreeViewAdv for .NET. Adobe Reader X should be installed on target computer. For more info read MediaWiki on Hosted Apps page and manuals (included in installation).
Easy to use utility to rotate or merge existing Pdf's from your computer. Most free programs like Adobe Reader will not allow you to save the file in a new orientation and FreePdf addresses this problem.
Rotate or merge multiple pdf's in bulk, not one by one.
Allows specific page numbers to be manipulated and allows you to choose the output path.
v1.3 allows the deletion of pages from a Pdf prior to rotating or merging by double clicking on a file.
Whyteboard is a painting whiteboard application for Linux and Windows, that allows the annotation of PDF and PostScript documents, and image files with common drawing tools.