AiFileStudio.PRO is a free collection of 24 PDF, image, and AI tools — merge, split, rotate, crop, watermark and compress PDFs, resize and compress images, remove backgrounds from photos, generate QR codes, barcodes, favicons and passwords, and more. Almost everything runs entirely in your browser using pdf-lib, Tesseract.js, and the Canvas API — your files aren't uploaded to a server. The only exception is the AI Art generator, which calls a third-party image API (clearly labeled).