How to send a PDF file from my computer to my iphone 12 mini to text it to someone

Email it to yourself. Then in the email, hold your finger on it and tap share. Then choose Messages and the attachment will populate there, then enter the To address.

Another way to make a .PDF file available to your iPhone – if you're using iCloud – is to copy it into iCloud Drive on your computer. Then, I believe you can use the Share button in the Files app.

84KB files are rather large. You are more likely running up against a limit to the file size you can text to someone. Why not just email the link to them?

Shirley-24 wrote:

Thank you. I did try that, but I keep getting "Message failed to send". I'll call the person. Maybe something is wrong with their phone. Thanks again.

Who is your carrier? Who is the recipient's carrier? Are these messages SMS (green) or iMessage (blue). If they are SMS, in addition to lobsterghost1's suggestion that there may be a size limit, there may also be a file type restriction. My carrier, Verizon, does not allow texts to be sent over SMS/MMS.