Patent drawing software for figure annotation.
Number patent figures fast. Place reference numbers and leader lines in two clicks, and import a reference list from CSV or Excel to number a full figure set in one pass.
7-day free trial · No credit card required
Two clicks per callout
Click where the number goes, click what it points at, and the leader line is drawn. No pen tool, no text box to align afterwards.
Import the list you already have
Bring numerals and descriptions in from CSV, XLSX or XLS, then drag each onto the drawing. Placed numbers are marked off as you go.
Export ready to file
One click exports a high-resolution, USPTO-compliant PDF. No cleanup pass and no reformatting afterwards.
7-day free trial · No credit card required
Reviews
From the peoplepreparing the drawings.
What used to take an hour now takes minutes.
Annotra has completely changed how I handle reference numbers and leader lines. It's fast, intuitive, and built around the way patent figures actually need to be prepared.
Rachel BennettPatent Illustrator, 15+ Years Experience I wish I had this years ago.
I used to annotate every figure manually in Illustrator. Annotra makes the entire process dramatically faster, especially when working with multiple figures and repeated reference numbers.
Thomas CaldwellPatent Agent, Independent Practitioner The learning curve was practically nonexistent.
I uploaded my figures, imported my reference numbers, and was working within minutes. It eliminates a surprisingly tedious part of preparing a patent application.
Daniel MercerPatent Attorney Simple, focused, and incredibly useful.
Annotra doesn't try to replace my drawing software. It does one specific job extremely well: getting reference numbers and callouts onto patent figures quickly and consistently.
Emily HartwellPatent Agent A huge time saver for figure preparation.
Being able to annotate an entire set of drawings, keep everything organized, and export a clean PDF from one place has made my workflow much more efficient.
Jonathan ReevesPatent Illustrator
Ready to Save Time and Create Perfect Patent Drawings?
Try it on your next set of drawings.
7-day free trial · No credit card required