Search Results for "png transparency"
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Showing 49 open source projects for "png transparency"
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APNGKit
High performance and delightful way to play with APNG format in iOS
The APNGKit project is a high-performance framework for loading, displaying, and animating images in the UIKit / AppKit ecosystem (iOS, macOS, tvOS), specifically targeting the APNG (Animated PNG) image format. Unlike traditional static PNG images, APNG supports frame-by-frame animation with full-color images and transparency — yielding better visual fidelity than GIFs while remaining efficient. APNGKit offers a friendly API (e.g. APNGImage, APNGImageView) that behaves similarly to the standard image/image-view pattern, making it easy for iOS/macOS developers to adopt without learning complex new APIs. ... -
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sharp
High performance Node.js image processing module
The typical use case for this high speed Node.js module is to convert large images in common formats to smaller, web-friendly JPEG, PNG, AVIF and WebP images of varying dimensions. Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips. Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed. ... -
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Tilf
Tilf (Tiny Elf) is a free, simple yet powerful pixel art editor
...Tilf provides a familiar drawing environment with essential tools—such as pencil, eraser, fill, eyedropper, rectangle, and ellipse—along with zoom, grid display, real-time preview, and undo/redo capabilities. It supports importing and exporting images in PNG, JPG, and BMP formats, including transparency options. With its single-executable builds for Windows, macOS, and Linux, Tilf can be run instantly and is ideal for both hobbyist pixel artists and developers needing a quick sketching tool for sprite work. The project emphasizes accessibility and minimalism over complexity, making it approachable even for users with no technical background. -
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libavif
Library for encoding and decoding .avif files
libavif is a portable, open-source C library that implements encoding and decoding for the AVIF (AV1 Image File Format), offering a robust, production-ready way to work with AVIF images across platforms. It supports all AV1-supported YUV formats and bit-depths, including alpha (transparency), and includes command-line tools (avifenc and avifdec) to easily convert to/from AVIF from common image formats like JPEG, PNG, or Y4M. The API is straightforward, allowing applications to integrate AVIF support natively — creating, decoding, compressing, or decompressing images programmatically. Recent developments have added experimental support for HDR gain maps, improved color-space handling (including wide color gamut and high bit depth), and better quality tuning modes for encoding, making libavif a cutting-edge tool for high-quality image compression. -
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export_fig
A MATLAB toolbox for exporting publication quality figures
export_fig is a MATLAB toolbox designed to simplify high-quality figure export from MATLAB, faithfully preserving visual appearance as seen on-screen—including size, colours, fonts, and layout—while offering precise control over output formats such as PNG, PDF, EPS, and more. Exporting a figure from MATLAB the way you want it (hopefully the way it looks on screen), can be a real headache for the unitiated, thanks to all the settings that are required, and also due to some eccentricities... -
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OpenBB Terminal
Investment research for everyone, anywhere
Fully written in python which is one of the most used programming languages due to its simplified syntax and shallow learning curve. It is the first time in history that users, regardless of their background, can so easily add features to an investment research platform. The MIT Open Source license allows any user to fork the project to either add features to the broader community or create their own customized terminal version. The terminal allows for users to import their own proprietary... -
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Multi Icon
Easily create stunning, high quality (256x256) multi-resolution icons
Create stunning, high quality (256 x 256) multi-resolution icons (.ico) and "mainicon" resources (.res) with ease and reliability. Open an image from file, or paste one in with transparency, or drag and drop an image directly onto the corresponding icon resolutions, then save. The multi-resolution icon stores a 256 x 256 image in PNG format, and five images at 64 x 64, 48 x 48, 32 x 32, 24 x 24 and 16 x 16 in native Windows icon format for maximum compatibility, back to Windows 95. Use a single Master image for the complete set of images, or separately individualise each image resolution for complete control over appearance. ... -
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TexMaths is an addon designed to provide LaTeX support into LibreOffice. LaTeX equations can be inserted as images (SVG or PNG formats) and the LaTeX code is saved into the image attribute for further editing.
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Apache OpenOffice
The free and Open Source productivity suite
Free alternative for Office productivity tools: Apache OpenOffice - formerly known as OpenOffice.org - is an open-source office productivity software suite containing word processor, spreadsheet, presentation, graphics, formula editor, and database management applications. OpenOffice is available in many languages, works on all common computers, stores data in ODF - the international open standard format - and is able to read and write files in other formats, included the format used by the... -
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jfPaint
Multi-Tabbed and Multi-Layered Paint program with a rich tool set.
Multi-Tabbed and Multi-Layered Paint program with a rich tool set. Features : pencil, line, curve, fill, box, circle, text, substitute, transparency, gradients and gaussian blur. Supports : JPG, PNG, BMP, TIFF, SVG, PGM, PPM, multi-layer proprietary file format (.jfpaint) -
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QR Code Generator
Offline QR Code generator focused on privacy, speed, and ease of use.
QR Code Generator by Mariano Ortu is a lightweight, offline QR Code generator designed for professionals and users who value privacy and control. It creates clean, reliable QR Codes without any internet connection, ensuring all your data stays on your device. No ads, no tracking, full transparency. Compatible with .NET Framework 4.8 and Windows 8 or later. -
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slim-fork
A fork of the SLiM "Simple Login Manager"
SLiM (Simple Login Manager) is a graphical login manager for X11. It aims to be simple, fast and independent from the various desktop environments. SLiM was originally based on latest stable release of Login.app by Per Lidén. The SLiM project used to be hosted on Berlios.de with a mirror on SourceForge. Then the code got moved to Github. Then all the maintainers lost interest and it died. Nine years later, I'm still using it as I find it the most easily configurable, most lightweight... -
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Snowmix
Video mixer for mixing live and recorded video and audio feeds
New version 0.5.2.1 Released December 29th 2025. Snowmix is a Swiss army knife tool for mixing live and recorded video and audio feeds. It supports 2D and 3D clipping, scaling and transparent overlay of video, png graphics and text. It supports animation of video, images and texts through native commands changing scale, placement, transparency and rotation. Animation and actions can also be controlled through native scripting and an embedded Tcl and/or Python interpreter. Snowmix is designed for control over low bandwidth links and can work as a standalone CLI based program. ... -
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TextureAtlas Toolbox
A powerful, free and open-source tool for TextureAtlases/Spritesheets
TextureAtlas Toolbox is an all-in-one solution for working with texture atlases and sprite sheets. Extract sprites into organized frame collections and GIF/WebP/APNG animations, generate optimized atlases from individual frames, or convert between 15+ atlas formats. Perfect for game developers, modders, and anyone creating showcases of game sprites. Formerly known as TextureAtlas to GIFs and Frames Licensed under AGPL-3.0 Third-party licenses: See... -
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Draft Notes
Grab screen areas and note it with a mouse, pen & keyboad quickly.
Especially for learners watching some lectures online or using video capturing devices. Grab screen areas with a click (or tap), automatically save it and allows adding notes on it using mouse, pen and keyboard - very quick (and draft). Then it is possible to view grabbed screenshots and annotate it additionally with the same set of tools, easy and convenient. May be help to somebody these sad days. -
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Simple BPG Image viewer
This program allows you to view BPG Images in Windows,Linux and macOS.
bpgviewer =========== This program allows you to view BPG Images in Windows,Linux and macOS (format description: http://bellard.org/bpg/). -
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JClipboardImage
Copypaste images with alpha between Java and Windows applications
JClipboardImage is a JNI mini-library for Windows only that provides clipboard image reading and writing. JClipboardImage reads and writes PNG and DIB images from and to the clipboard. Unlike java.awt.datatransfer.Clipboard, it handles alpha channels in DIB images. Notably, this means enables copypasting images with partial transparency to and from contemporary web browsers. -
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aPhoto
aPhoto is a Batch Intuitive Program Makes Text and Image Watermarks
Introduction: aPhoto is a batch, intuitive and portable program that helps you to make text(eg. Copyright Notice) and image(eg. Logo) watermarks for the photos, and save the result photos to JPG, PNG, GIF, or BMP file formats. aPhoto is a lightweight application whose purpose is to help users embed text or image watermarks on their favorite pictures. This is a portable program, so it is important to mention that it doesn't leave any traces in the Windows Registry. You can copy it on... -
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PyExfil
A Python Package for Data Exfiltration
PyExfil was born as a PoC and kind of a playground and grew to be something a bit more. In my eyes it’s still a messy PoC that needs a lot more work and testing to become stable. The purpose of PyExfil is to set as many exfiltrations, and now also communication, techniques that CAN be used by various threat actors/malware around to bypass various detection and mitigation tools and techniques. You can track changes at the official GitHub page. Putting it simply, it’s meant to be used as a... -
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Screentake - Screen Capture
Free Screenshot Tool
It is a powerful application that allows you to quickly take screenshots with one click and customize them with powerful tools and get short links. This free screenshot tool has powerful editor. You can make the edits you want in the screenshot very easily. You can add different shapes such as pencil drawing, triangle, square, circle, heart, star, arrow, and straight line directly to the screenshot. In addition to these features, it also includes powerful features such as text tool,... -
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Longford
A cross platform Lua based game engine
... + Frame update, keypress and (multi)touch events which propagate through the display tree. + Creation of Sprites including polygon Shapes and rectangular Bitmaps with transparency (import as PNG, JPG, GIF, BMP, TGA) + Creation of Textfields based on bitmap fonts. + Translation, rotation and scaling of sprites. + Box2D physics engine. + Play sound effects using WAV files and stream music using OGG files. + Automatic tweening system + Texture atlases so that many Bitmaps can be "cut out" of a single larger picture file... -
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purePDF
A complete actionscript PDF library
purePDF is a complete PDF library for ActionScript designed as a port of the Java iText 1 library. It allows developers to both create and read PDF documents directly from running SWF files, enabling seamless integration of PDF functionality into Flash-based applications. The library supports a wide range of PDF features, including advanced text rendering, graphics, gradients, transparency, annotations, and interactive forms. It also provides robust support for images, fonts, metadata,... -
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Image Label Maker
A wordpress plugin to create new images with label or watermark
The Image Label Maker is a simple wordpress plugin to merge images together and creates a new image with label or watermark. It works with PNG and JPG images and you can add an image as label image to another image (main image). This plugin has very flexible options that enables you to generate images with watermark or label. In admin panel, you can control: 1) access level for authorized users or all visitors 2) uploading images size 3) asking question to prevent bots 4) storing time for created images In frontend input form, users can control and customize: 1) place of label image 2) distance of label image from corners 3) amounts of transparency for label image 4) type of output image (jpg or png) To use this plugin, after activation of the plugin, you should place [image_label_maker_form] shortcode in your posts. ... -
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ContourIt
bitmap to vectorized graphics manual converter
...In Altium Designer it is not as easy as it could be either. This app helps to convert a bitmap to a vectorized graphics manually. You can load a pic (supports *.bmp *.cur *.gif *.icns *.ico *.jp2 *.jpeg *.jpg *.pbm *.pgm *.png *.ppm *.svg *.svgz *.tga *.tif *.tiff *.wbmp *.webp *.xbm *.xpm) and than, using window opacity and events transparency features, make a contour with your CAD (or whatever) tool. The app uses qt5.8 library. For win users all dll stuff is in the archive. For linux users you will need to install qt5.8 libs for your distributive or you can build em from sources and add a path to them to LD_LIBRARY_PATH variable. ... -
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Guetzli
Perceptual JPEG encoder
Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality. Guetzli-generated images are typically 20-30% smaller than images of equivalent quality generated by libjpeg. Guetzli generates only sequential (nonprogressive) JPEGs due to faster decompression speeds they offer. Get a copy of the source code, either by cloning this repository, or by downloading an archive and unpacking it. Install libpng. If using your operating system package manager, install...
