Continuous by default
The sequence runs from the first page of the first file to the last page of the last, in the order you set. A gap or a duplicate becomes visible immediately, because the numbers are the inventory.
How the numbering works
Prefix, padding, step
DEF-000123 has a prefix, six padded digits, and no suffix. The padding is what keeps numbers sortable — production software compares numbers as text more often than as integers. Choose a prefix, a suffix, 3 to 10 digits, a custom start, and a step.
Per-file or continuous
Continuous is the production default: one sequence across the whole set, allocated at the end so the order is fixed first. Per-file restarts at 000001 for each document — the right call only when each file is its own exhibit. Choose deliberately, not by habit.
Reserved ranges and overlaps
Roll to the next thousand at each document boundary. Paste an already-used range and the tool refuses to start on an overlap. Overflow widens the digit field with a warning before the run — never silently.
Number a production tonight
One file up to 25 pages is free with every feature enabled. $19 once for unlimited.