Images to PDF in the Browser: Page Boxes, Margins and the Crop Math

OnePassApps offers an Image Studio with specialized tools for local browser processing. The Images to PDF tab allows users to assemble PDF files directly within their browser tab, ensuring files remain off external servers for better privacy. Additionally, the Crop tab treats cropping as four precise pixel values—x, y, width, and height—rather than simple drag gestures. This numerical approach enables users to verify results and reproduce crops accurately using the provided number fields.