Unfortunately, the MMS technology is limited to sending jpeg, png and gif images and is not able to natively send PDF documents.
The best way to share PDF documents via text message is to save to a cloud drive and send the link of the file to the recipient.
Delivery is notguaranteed since downstream carriers and recipients' mobile devices may have limitations on what types of files they accept.
The Texty Pro business text messaging service delivers picture, video, or audio messages of up to 1MB but please keep in mind that all networks restrict the size of MMS.
Due to the differences in devices, file types, and transcoding, we recommend that you send files that are no larger than 500KB to ensure delivery.