TechEDMentor has several ways to open PDFs:
Method 1: Drag and drop
On a New tab screen drag-n-drop any PDF file from Finder to the highlighted area.
Method 2: Open a PDF From Home Page
1. launch TechEDMentor and click Open Files -> choose a file and click Open;
2. Or launch TechEDMentor and choose a recent file -> double touch to Open.
Method 3: Open a PDF From Reading Page
Choose Create a new tab+ on the top, then open the file;
Method 4: Open a PDF From the Desktop
Right-click the thumbnail of a PDF file -> choose Open With -> select TechEDMentor;
Note: To save valuable time, you can set TechEDMentor as a default viewer, so that you can open your file directly by double-clicking the PDF file icon. The link will help you set TechEDMentor as a default viewer.