These instructions may also work forthird-party apps.
pick the PDF to open a preview.
TapShareto pop fire up share sheet that contains options toshare and save filessuch as PDFs.

Select where to store the PDF.
For example, to view the PDF inApple Books, chooseCopy to Books.
To save the PDF to acloud storageservice such asGoogle Drive, selectCopy to Drive.

Other cloud storage services may includeiCloud DriveandDropbox.
SelectSave to Filesto store the PDF in iCloud Drive.
Select theSharebutton and chooseCreate PDF.

Then, select theSharebutton again to choose a location to save the PDF.
The only requirement is that the Mac and the iPhone or iPad are connected to the sameWi-Finetwork.
On the Mac, bring up the PDF and selectShare.

SelectAirDrop, then select your iOS unit.
When you share the PDF using AirDrop, your iPhone or iPad will ask how you want it opened.
For example, ifAmazon Kindleis installed on the rig, initiate the PDF in the Kindle reader.

On your iPhone or iPad, go toSettings, choose your name, then selectiCloud.
Toggle theiCloud Driveswitch to theOnposition (green).
Use yourApple ID/Apple Accountlogin information to sign in to your iCloud account on Windows and iOS.

If you don’t have this information,reset your Apple Account password.
On your Windows PC, openFile Explorerandcopy the PDF fileyou want to transfer to your iPhone or iPad.
Go toiCloud Driveand paste the file into an existing folder or create a new folder.
The PDF file is available on your iPhone or iPad using theFiles app.