Confidential File Merger

Updates:

• No more location leaks. Phone photos carried their GPS position, camera and owner name into the merged PDF. That hidden metadata is now stripped by default, with pixels untouched.

• Password-protect the result. Add a password and the merged PDF is encrypted with AES-256, safe to email or share.

• Page count up front. The list shows how many pages the result will have, honouring your page picks.

• Undo. Removing a file or clearing the list offers Undo for a few seconds, and Ctrl+Z works too.

• Paste. Ctrl+V drops a screenshot into the queue, onto the signature, or into the checker.

• Banner. The README now opens with the app itself, light and dark.

Confidential File Merger is useful for anyone who regularly handles sensitive documents and wants to keep everything local.

Great for:

• Small business owners merging contracts, invoices, receipts, client files, and internal documents

• Students combining assignments, research papers, scanned notes, application requirements, and school documents

• Anyone who prefers offline tools and does not want private files uploaded to third-party websites

It runs on your own machine, fully offline, with nothing sent to the cloud.

If you want to try it and need help setting it up on Windows or Linux

Features and selling points:

• Fully offline. Runs on localhost. No cloud, analytics, telemetry, or update checks.

• Browser-enforced privacy: a strict CSP blocks the page from reaching any server but yours.

• In-memory only. Nothing written to disk, no file names in logs.

• Merges PDF, PNG, JPEG, GIF, BMP, WebP, TIFF in any mix and order.

• Unlimited files, sizes, and merges. Chain results.

• Drag and drop files or folders, drag to reorder, natural sort (scan1, scan2, scan10).

• Opt-in server-side folder scanning for huge batches, locked to a root you choose.

• Quality kept: JPEGs byte-for-byte, page sizes, rotation, links, annotations.

• Owner-locked PDFs just work. Password-locked ones get a clear refusal, never garbage.

• Image pages: match size, A4, or Letter with margins.

• One small Rust binary. No runtime or JS build. CLI included.

• Docker-ready. Light and dark themes. Apache 2.0.

Do not upload your bank statements, contracts, IDs, tax returns, or medical records to random "free PDF merge" websites. You have no idea who runs them, where your files go, how long they are kept, or who they are sold to. Merging a PDF does not need the internet. This tool does the same job on your own machine, with the browser itself blocked from talking to anyone else, so there is nobody you have to trust.