Drop a whole folder and rename every file at once — by a numbered pattern or find-and-replace. The files themselves are untouched; you download a ZIP with the new names.
or drop files / a folder here
Drag a whole folder (or a set of PDFs) onto the upload box, or click to choose files. Then pick a mode: "Numbered" gives every file a base name plus a sequence number (invoice-01.pdf, invoice-02.pdf…), and "Find & replace" swaps any text that appears in the existing filenames. A live preview shows each old name struck through next to its new name, so you can check the result before you commit. When it looks right, click "Download renamed ZIP".
No. This tool is 100% client-side — every file is read and renamed inside your own browser, and nothing is ever sent to a server. There is no upload step at all; the renaming and the ZIP are built locally on your device. That is also why it is free, with no signup, no watermark, and no account to create.
You get a single ZIP file (dockdocs-renamed.zip) containing copies of your PDFs with the new filenames. Renaming changes the filenames only — the PDF contents, pages, and quality are left completely untouched. The original files on your computer are not altered either; you just download a freshly named set.
Yes — this tool handles up to 100 PDFs per batch. Because everything runs in your browser, very large batches use more memory and take a little longer on weaker machines, but well within the 100-file limit it is fast. If you have more than 100 files, just run a second batch.
Yes. You can drop an entire folder, and the tool automatically filters out anything that is not a PDF — images, spreadsheets, and other documents are ignored, so only your PDFs are added to the list. You do not need to clean up the folder first.
The tool catches that automatically. If a numbered pattern or find-and-replace would produce two identical filenames, it adds a -1, -2 (and so on) suffix to the later ones so every file in the ZIP keeps a unique name. Nothing gets silently overwritten or lost.