Upload PDFs, organise them into services, rotate, reorder, and clean up the drawings inside a project.
12 articles
Supported file types
What ZeroCount accepts for upload, what it does not, and how to prepare drawings that aren't already in the right format.
Updated 13 May 2026
Uploading drawings
How to add PDFs to a project — drag and drop, the file picker, the upload zones, and what happens during processing.
Organising with services
What a service is, why you'd use one, and how services lay out the drawings inside a project.
Creating and renaming services
How to add a new service to a project and how to rename one after the fact.
Clearing and deleting services
How to empty a service of files (keeping the service for later use), and how to remove a service entirely.
Rotating files
The three places you can rotate a drawing, why rotation matters for detection, and how the directions map to angles.
Reordering files
How to change the order of drawings inside a service by drag-and-drop, and where the order matters.
Moving files between services
How to drag a file out of one service and into another, and what happens to its position and data when you do.
Deleting a file
How to remove a single drawing from a project, what happens to its markers and zones, and how this differs from resetting a drawing.
Downloading files
How to download a copy of the original PDF for a drawing from inside ZeroCount.
Resetting a drawing
How to wipe every marker, zone, AOI, and ignored colour from a drawing without removing the file itself.
How ZeroCount remembers where you were
ZeroCount remembers the last drawing you worked on in each project and pre-selects it when you come back. Here's how it works and how to override it.
