Filozy
← All tools

Runs entirely in your browser

Merge PDF files

Combine PDFs in the order you select them. Nothing is uploaded.

Rename file

Organize PDF · quick answer

What Merge PDF does

Use Merge PDF to choose PDF files, combine and reorder the pages before exporting. Page order is visible before export, and the source files are never uploaded. Filozy starts the document engine only after you choose a file, performs the work inside this tab, and creates a new result for you to save. Your selected document, its filename, and its contents are not sent to Filozy.

How to merge pdf in your browser

  1. Choose PDF filesSelect PDF files from the dropzone. Filozy reads it locally and shows the relevant preview or controls before changing anything.
  2. Review the settingsUse the page preview and available options to decide exactly how merge pdf should handle this document.
  3. Create and check the resultRun the tool, review the reported page count, size, or notes, then save the newly created file while keeping the original.

Limits worth knowing

  • This workflow stops on interactive forms rather than risk losing their fields. Use Flatten first and check every visible answer in that saved copy, then open the flattened PDF here. Keep the editable original; protected or XFA forms may need a compatible form application first.

Essential questions

Does Merge PDF upload my file?

No. The selected file is opened and processed by code running in this browser tab. Document bytes and filenames are not sent to Filozy.

Will this change my original file?

No. Browsers cannot silently overwrite the file you selected. Filozy creates a separate result for you to save or pass to another local tool.

See a worked example, troubleshooting and the full FAQ →