Image Resize Tool

Purpose & User Intent: This tool provides fast, client-ready image resizing for web, marketing, and e-commerce workflows. It targets web developers, designers, content teams, and social media managers who need precise dimensions, batch processing, or format changes without local software. Users prepare assets that meet platform-specific size limits and loading speeds, improving consistency across pages and campaigns.
Core Logic & Features: It accepts single or multiple image inputs, resizes based on width/height or percentage, and supports optional cropping or fit modes to preserve or fill canvases. Outputs include common web formats (JPEG, PNG, WebP) with adjustable quality, and options to retain or strip metadata. Batch processing is supported with per-file results and a concise summary for downstream tasks.
Inputs & Outputs: Inputs include images (files, required, single or multiple), target_width_px (optional), target_height_px (optional), resize_pct (optional), fit_mode (contain|cover), output_format (jpeg|png|webp), maintain_aspect (default true), and quality (0–100, optional). Outputs produce resized_images (files with new dimensions), download_links, and a result_report detailing size changes and processing time.
Algorithms & Calculations: If resize_pct is set, new_w = round(orig_w * pct/100) and new_h = round(orig_h * pct/100). If width and height are provided with maintain_aspect, scale by min(width/orig_w, height/orig_h). If fit_mode is contain or cover with both dimensions, adjust to fit inside or cover the target box. If converting format, apply quality controls.
Error & Edge Cases: No inputs or invalid formats yield structured errors; extreme values are clamped; mixed image types may process separately with partial successes and a report.
Industry/Region & Localization: Units are pixels; supports web-standard color spaces (e.g., sRGB); outputs align with typical US/EU web guidelines; no currency or locale-specific calculations.
Assumptions & Exclusions: Assumes input images are raster formats; does not support vector graphics or watermarking; focuses on resizing and optional format conversion, not on advanced image editing.