# Files Upload receipts, contracts, and documents. Attach files to actuals, POs, and projects. Supports batch uploads and direct URL access. ## Upload file - [POST /files/upload](https://docs.saturation.io/openapi/files/uploadfile.md): Upload a file to project storage. Accepts PDF or image files up to 10 MB. ## Download file - [GET /files/{fileId}/download](https://docs.saturation.io/openapi/files/downloadfile.md): Download/stream a file ## Delete file - [DELETE /files/{fileId}](https://docs.saturation.io/openapi/files/deletefile.md): Delete a file from storage