Tailor your résumé to one job
Paste your résumé and the job ad. In about 20 seconds you'll see whether it's worth applying, and get lines you can defend in an interview. Nothing is invented.
Design your CV
Edit the content, then fine-tune fonts, sizes and spacing. The preview shows exactly what you'll download, including where the pages break. Every layout is single-column, so ATS software reads it cleanly.