Bulk rename PDF files

Yes — the renaming happens in your browser and the files never leave your device. Set an output folder and the renamed copies are written straight into it; without one they come back as a single zip, because a browser asked to save two hundred files individually is not a pleasant experience for anyone. Your originals are never modified either way.

Because that is the order a person means. A plain alphabetical sort compares text character by character, so "1" comes before "2" and Exhibit 10 lands between Exhibit 1 and Exhibit 2 — on a bundle of forty exhibits that misorders the whole middle of it, and the result looks plausible enough to survive a glance. Sorting here is numeric-aware, so 2 comes before 10.

You are told before anything is written, and the rename is blocked until you change the pattern. This matters more than it sounds: two files renamed to one name would leave the folder a file short with no error message anywhere, which is indistinguishable from the rename having worked. Illegal characters and reserved names such as NUL are caught in the same pass.

The same double-brace tokens Workflows uses, so anything you have learned there works here: {{name}} for the original name, {{n}} for its position in the list with your own start and padding, {{date}} for the file's own modified date, {{parent}} for the folder it came from, and {{total}} for how many there are. Find-and-replace runs first, literally or as a regular expression.

No. The file is opened, processed and saved back by code running in this browser tab — there is no upload endpoint on our servers to send it to. You can watch the Network panel in your browser's developer tools while you work and confirm nothing carrying the document leaves the page.

Bulk Rename is part of PDFMacro Pro. You can read what it does and open the tool on any plan; running it requires a subscription. Renaming a single file is not a job that needs a tool, so there is no free half to separate out.

Yes. Once the page has loaded, every tool keeps working with the network disconnected, because the processing never depended on a server round-trip. AI features that use an on-device model need one download the first time; after that they run offline too.