Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Assemble project PDFs in the page order listed on each request.
Your report or invoice packet is ready on the same spreadsheet row as the source PDFs, with its pages in the order you chose.
Flag repeated files in submitted document packages.
Spot repeated files before you review a team's batch. Your folder shows flagged copies, and a results file shows where their matches live.
Attach one ordered PDF packet to the project task.
Your reviewer gets a single PDF in the order you set, with the finished packet attached and linked on the project task.