Browser-Based Tool Merges iPhone Photos into One PDF Without Uploads

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A developer describes building a tool that combines a batch of phone photos, often HEIC files, into a single PDF entirely within the browser. The tool checks each file's actual format rather than trusting its extension and converts HEIC images to JPEG while stripping location metadata for privacy. Users can reorder pages via drag-and-drop or arrow buttons, with the reordering logic kept as simple, pure data handling. Pages can be sized to real paper formats such as A4 with each page oriented to match its photo, or sized to the image itself. Files that fail to load are flagged individually so the rest of the job can still finish.

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