Stop numbering patent figures by hand.
Duplicate a callout across every sheet and it keeps its number. Reduce repeated entry while you review placement and consistency across the figure set.
7-day free trial · No credit card required
One numeral, every figure
Duplicate a callout to another page, or to all of them at once, and the number travels with it. 100 stays 100 across the whole set.
Less repeated entry
Number a full set in one pass instead of retyping the same numerals sheet by sheet and checking them against each other.
Text-size warnings
Flags small annotation text and relative figure/page-number sizes. Review actual character height and filing requirements in the exported PDF.
7-day free trial · No credit card required
The founder story
Built around the work of a patent illustrator.
Annotra was built by Michael Williams, a patent illustrator and the founder of American Patent Drawings (APD), his patent illustration company. Michael designed Annotra from hands-on patent drawing work to bring reference numbers, leader lines, figure labels and PDF export into one focused workflow, built by someone who understands the work firsthand.
Michael Williams
Founder of Annotra and American Patent Drawings
Annotra is an early-stage product and brand of Design Serious LLC, based in Scottsdale, Arizona.
Ready to Annotate Your Patent Figures?
Annotra is free to try for seven days on your own patent drawings, with every Pro feature included. Import a PDF drawing, place reference numbers and leader lines, and export an annotated PDF to check the result before you decide whether to subscribe.
7-day free trial · No credit card required