Photo Resizer

Purpose & User Intent: The tool provides precise image resizing for digital media workflows. It targets photographers, marketers, web developers, and content creators who need exact pixel dimensions or percentage scaling without watermarking. It is used when asset consistency across platforms is required or when optimizing for faster loading. Core differentiators include explicit aspect-ratio handling, optional crop-to-fill, and format-conversion with quality control.
Core Logic & Features: It supports exact width/height, percentage scaling, aspect-ratio preservation, crop-to-fill, fit-with-padding, and multi-format export (JPEG, PNG, WEBP). Optional batch processing supports multiple images with unified or individual settings. Inputs & Outputs: Accepts a source image (upload or URL) and outputs new_width, new_height, format, and file_size. Outputs can be downloaded individually or as a bundle. Algorithms & Calculations: The system computes scale from target dimensions or percentage; if crop is enabled, it resizes to fill target and then crops; otherwise it preserves aspect ratio and may pad to meet exact dimensions. It performs format conversion and applies chosen quality. Error & Edge Cases: Validations cover negative/zero values, unsupported formats, and missing source; provides safe defaults and preserves original when needed. Industry/Region & Localization: Pixel units; web-standard formats; no locale-specific currency or measurements required. Assumptions & Exclusions: Assumes valid image input and server-side processing; does not apply watermarks, metadata changes beyond format conversion, or advanced color corrections; batch behavior may vary by file count.