With PDF Pro you can open multiple documents at the same time in different tabs.

  1. Open the first document you want.
  2. Tap on the More button. iPhone showing PDF document with More button highlighted
  3. Tap on the Add Documents button. iPhone showing menu with Add Documents button highlighted
  4. Select the desired document. iPhone showing document picker to select additional document
  5. To switch between the tabs, just tap on the tab you want to open, as indicated in the screenshot below. iPhone showing multiple document tabs at top of screen
  1. Open the first document you want.
  2. Tap on the Add Documents button. iPad showing PDF document with Add Documents button highlighted
  3. Select the desired document. iPad showing document picker to select additional document
  4. To switch between the tabs, just tap on the tab you want to open, as indicated in the screenshot below. iPad showing multiple document tabs at top of screen