Projects sharing features with Noteshrink

ImageOptim is a macOS image optimizer and GUI image compressor designed to reduce image file sizes for web and disk storage. It functions as a lossless image optimizer that removes unnecessary metadata and optimizes encoding to reduce file sizes without losing pixel data. The application handles macOS media asset management and web image preparation by shrinking files to improve website loading speeds and reduce storage usage. It provides both lossless and lossy compression options to maintain visual quality while reducing the disk space used by images.

Guetzli is a lossy image compression tool and perceptual JPEG encoder. It converts PNG or JPEG inputs into high-density JPEG files, reducing file size by removing data that the human eye cannot easily detect. The tool utilizes human vision models to optimize the balance between file size and visual fidelity. It employs perceptual quality metrics and psychovisual similarity estimation to maintain high visual quality while maximizing compression density. The project includes a visual difference analyzer capable of generating spatial difference heatmaps and calculating scalar similarity scores.

pdfsam is a PDF manipulation software and desktop application designed for splitting, merging, rotating, and extracting pages from PDF documents. It functions as a PDF editor, converter, and security tool, providing capabilities to modify document structures and manage file formats. The project distinguishes itself through specialized processing capabilities, including an OCR document processor for extracting editable text from scanned images and PDF interleaving to alternate pages from multiple files. It also provides a security suite for encrypting documents, managing access permissions, an

This package is a library for automating the compression and file size reduction of images within a web application. It functions as a utility that intercepts media assets to ensure they are optimized for web delivery before they are stored or served. The project distinguishes itself by orchestrating external command-line tools to perform heavy compression tasks outside of the main application runtime. It utilizes a strategy-based approach where individual processing algorithms are encapsulated into interchangeable classes, allowing for the development of custom optimization pipelines tailore

pypdf is a Python library for parsing, manipulating, and generating PDF documents. It provides high-level operations for document processing, such as merging multiple files into one or splitting a single document into smaller files. The project includes specialized tools for managing interactive elements, including the creation and modification of annotations, hyperlinks, and form fields. It also supports advanced metadata management, allowing for the extraction and modification of standard document properties and XML-based XMP metadata. Beyond basic structural changes, the library covers pa

QuestPDF is a C# PDF generation library and layout engine used to create structured documents, reports, and invoices. It utilizes a fluent API and a component-based layout approach to convert code into high-fidelity PDF and XPS files. The library distinguishes itself with a dedicated layout debugger that provides real-time previews, hot-reload capabilities, and visual boundary tools to map rendered elements back to source code. It also functions as an accessibility tool, providing semantic tagging and navigational aids to ensure documents comply with international accessibility and archival s

This project is a PHP library designed to automate image compression by orchestrating external command-line binaries. It provides a unified interface for managing the execution, configuration, and error handling of system-level tools, allowing developers to integrate image optimization directly into server-side application workflows or automated build pipelines. The library distinguishes itself through its ability to chain multiple independent processing tools into a single, sequential workflow. By defining custom optimization sequences and configuring specific command-line arguments, users c

This is a Glide image transformation library for Android that provides a collection of image processing filters and shapes. It functions as a suite of hardware-accelerated tools for image cropping, artistic filtering, and transformation pipeline management. The project distinguishes itself through an image filter pipeline that allows for sequential transformation chaining, enabling multiple visual effects and color modifications to be applied in a single pass. It utilizes GPU acceleration to implement artistic effects such as pixelation, sketching, and blur. The library covers a broad range

Squoosh is a browser-based image optimizer that compresses and converts image files directly within the local environment. By performing all operations on the user device, it eliminates the need for server-side processing, ensuring that sensitive data remains private and reducing network latency. The tool utilizes a collection of high-performance image codecs compiled via WebAssembly to provide professional-grade file optimization and format conversion. To maintain interface responsiveness during resource-intensive tasks, the application offloads image manipulation to background threads and u

Jimp is a zero-dependency JavaScript image processing library and programmatic editor designed for manipulating, resizing, and filtering images in Node.js. It functions as a multi-format image encoder and extensible pipeline that operates entirely in JavaScript to ensure portable deployment across different environments without requiring native system dependencies. The engine features a modular architecture that allows for custom image processor builds and the registration of custom processing plugins. This extensibility enables the addition of specific visual effects and custom file-type enc

CarrierWave is a Ruby file upload library used to manage the uploading, storing, and retrieval of files within web frameworks such as Rails and Sinatra. It functions as an Active Record file manager that associates uploaded assets with database records. The project includes an image processing pipeline for generating thumbnails and derivative versions of uploaded images. It also features a file validation engine to restrict uploads based on allowlists or denylists of extensions and content types, and provides cloud storage integration to manage assets on remote providers. The library covers

Paperclip is an ActiveRecord file attachment manager that links database models to files stored on local disks or cloud storage. It functions as a system for managing file attachments, a fingerprinting system for detecting duplicates and verifying integrity, and a MIME type validator to ensure uploaded files match allowed formats. The project features an image processing pipeline that uses command-line utilities to automatically generate thumbnails and scaled versions of images based on predefined dimensions. It also provides S3 compatible file storage for managing attachments in Amazon S3 an

SVGOMG is a browser-based SVG minification tool that applies SVGO transformations entirely on the client side. It processes SVG files in a Web Worker to keep the user interface responsive, then displays the original and optimized file sizes side by side, including gzipped size estimates. The tool provides a live preview of the optimized SVG markup, rendered directly in the browser for immediate visual feedback. Users can configure which SVGO optimization plugins are enabled or disabled, set numerical precision for coordinates and transforms, and optionally pretty-print the output. Multiple op

Imageflow is a high-performance image manipulation library and composition engine available as a C-compatible library, a command-line image processor, and a dynamic image processing server. It provides the means to decode, encode, and apply complex visual transformations to images through programmatic interfaces, JSON job files, or on-the-fly URL query strings. The system distinguishes itself through a graph-based processing pipeline that allows for single-pass multi-format encoding, generating multiple image sizes and formats from a single decode to reduce overhead. It further features a res

yolotf is an object detection framework that provides tools for converting Darknet model configurations and weights into TensorFlow graphs. It includes a TensorFlow model trainer for training new detection models or fine-tuning existing weights using custom datasets. The project features a mobile model exporter that serializes graph definitions and metadata into protobuf files for deployment on mobile devices. The framework supports object detection inference on images and video to identify objects and export bounding box coordinates. It manages model state through weight-mapping translation

Image Optim is a command-line utility and build-time integration tool designed to automate the compression of image assets. It functions as a processing engine that coordinates multiple external compression utilities to perform both lossless and lossy transformations, reducing file sizes for web and application deployment. The tool distinguishes itself through a robust orchestration layer that manages parallel task execution and recursive directory traversal to process large batches of files efficiently. It includes built-in benchmarking capabilities to measure the effectiveness of different

GPUImage2 is a Swift framework for applying real-time filters and effects to images and video using the GPU. It provides a real-time video filter library, an image geometry manipulation engine, and an OpenGL shading pipeline for processing visual data on graphics hardware. The framework enables the construction of visual effect pipelines by chaining image sources to consumers in sequential flows. It supports the development of custom fragment and vertex shaders for bespoke image processing and offers the ability to bundle these operations into reusable units via graph-based grouping. Capabil

Luban is a memory-safe image loading and optimization library for Android. It functions as an image optimizer and compression tool designed to reduce image file sizes and resolutions while preventing application crashes through the use of pixel limits and downsampling. The project replicates the specific compression and downsampling logic used by WeChat Moments to ensure images meet social media quality standards. It uses adaptive resolution scaling and dimension-aware strategies to balance visual quality with storage efficiency. The library covers bulk image processing, format optimization,

Pdfcraft is a containerized service for self-managed PDF processing, editing, and conversion. It provides a toolkit for document manipulation, a multi-format converter, and OCR software to transform scanned documents into searchable and editable text. The project features a visual, node-based workflow editor that allows users to build automated pipelines by chaining together various PDF conversion and optimization operations. The service covers a broad range of capabilities, including document management for merging and splitting files, format conversion between PDFs and office documents or

FastImageCache is an iOS image caching library that provides a persistent disk-based image store. It utilizes a persistent bitmap cache to store images in uncompressed formats and incorporates an image pre-processing pipeline to optimize assets before they are committed to storage. The library optimizes rendering performance by using memory-mapped image tables for constant-time retrieval and byte-aligned data layouts to prevent memory copies. It organizes images of identical dimensions into shared tables and manages disk space through a least-recently-used cache eviction system. The project

arxiv-latex-cleaner is a utility designed to prepare LaTeX projects for submission to the arXiv preprint server. It functions as a document sanitizer and source cleaner, removing private comments, metadata, and sensitive information from LaTeX files. The tool optimizes document size by eliminating unused files and compressing graphics to meet strict upload limits. It further handles the externalization of complex drawing environments, replacing raw source code with references to pre-compiled image or PDF files to hide simulation data. The system performs source-to-source transformations to r

Lychee is a self-hosted photo management system and PHP web application designed for organizing, browsing, and sharing personal photo collections. It functions as a dockerized media server that provides a web interface for uploading and managing images independently of commercial cloud services. The system features an integrated image processing pipeline that automatically generates responsive thumbnails and applies watermarks during the upload process. It supports remote media migration through integration with the Dropbox API and allows for the synchronization of existing server directories

Pdfarranger is a PDF page organizer, document editor, image converter, and booklet generator. It provides a visual drag-and-drop interface to reorder, merge, split, and delete pages within PDF documents. The application includes specialized tools for creating booklet printing layouts and converting image files into PDF pages or exporting PDF pages as PNG and JPEG images. It allows for the modification of document metadata while preserving internal outlines and hyperlinks. The software covers a range of structural manipulations, including page rotation, resizing, cropping, and overlaying. It

chaiNNer is a GPU-accelerated AI image upscaling application that uses a visual node-based interface for constructing image processing pipelines. At its core, it provides a node-based visual programming environment where users connect processing nodes in a directed acyclic graph, with a graph execution scheduler that traverses the pipeline in topological order. The application includes an iterator-based batch processing system that automatically applies the same pipeline to multiple files, and a model format conversion pipeline that transforms neural network models between PyTorch, ONNX, and N

Sharp is a high-performance image processing library for Node.js. It serves as a native extension and wrapper for the libvips framework, providing tools for image resizing, format conversion, and programmatic data manipulation. The project enables the transformation of images into web-friendly formats such as WebP and AVIF while preserving color profiles and alpha channels. It also provides capabilities for generating blank image buffers with specified dimensions and background colors. The library covers a broad range of image manipulation utilities, including rotation, extraction, compositi

pdfcpu is a Go PDF processing library and command-line interface designed for programmatically manipulating, optimizing, and validating PDF files. It provides a toolkit for document content modification and structural management. The project distinguishes itself as an optimization tool and layout engine, capable of reducing file sizes and improving loading speeds by streamlining internal structures. It also functions as a security manager, providing password-based encryption, decryption, and digital signature verification. Its capability surface includes page management for merging, splittin