> For the complete documentation index, see [llms.txt](https://help.brieftech.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.brieftech.ai/how-to-guides/process.md).

# Process Files

Most files move through processing automatically. These guides cover the cases that need attention.

* [Reprocess a failed document](/how-to-guides/process/reprocess-failed-document.md) — Retry a document that hit an error during conversion, OCR, or another processing step.
* [Unlock a password-protected file](/how-to-guides/process/unlock-password-protected-file.md) — Remove a file's password protection outside BriefTech, then upload the unlocked copy.
* [Extract files from a ZIP or email attachment](/how-to-guides/process/extract-zip-attachments.md) — Unpack the contents of a ZIP archive or email into individual documents.
* [Split a PDF](/how-to-guides/process/split-pdf.md) — Cut one PDF into several separate documents.
* [Edit a PDF](/how-to-guides/process/edit-pdf.md) — Change a PDF's pages in the built-in editor, then choose how to apply the changes.

***

**Next step:** with your documents processed, [organise them](/how-to-guides/organise.md) into folders and collections to shape the set before review.


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