To export your large document (too large for email) out of ForeFlight Mobile:
STEP 1. Go to the DOCUMENTS view and select the document you want to export.
STEP 2. Tap the SEND TO button.
STEP 3. Select the PRINT option.
Select the SEND TO button and then PRINT
STEP 4. In the Print Options window, tap the SEND TO button (or zoom into the document preview to open the document in a full-screen view). NOTE: before tapping the SEND TO button you can de-select any pages you do not want to include in the resulting PDF.
Tap the Print Options: SEND TO (or zoom into the document preview)
STEP 5. Select among the export options (Save to Files, AirDrop, Books, or Dropbox if you have a service linked to your account).
Select from available export options