Welcome! "Sketch on PDF" is designed for you to underline, comment and sign up your PDF documents. There are no frames anymore - now you can freely transform your page margins and use the infinite world of digital space. Benefits of using "Sketch on PDF" The App is very simple to use, so you can easily sketch any diagram, schema, outline direct in- or with the freely adjustable bounds around- the page. Features - Markup key words and sentences - Write down your comments - Extend margins - Choose any color you like - Change any brush you like - Scroll smoothly through the PDF (like a scroll without switching screens for each page) Technical support We support all Android devices such as smartphones and tablets, equipped with S-Pen or Stylus. If you have any suggestions, questions, or recommendations, please feel free to contact us. Thank you! Best wishes, Your support team E-Mail: [email protected]