Open the JPEG file on your computer or phone
Select the Print option
Choose Save as PDF or Microsoft Print to PDF
Select the page size and orientation if needed
Save the file as a PDF
Use an online JPEG to PDF converter
Upload the JPEG file
Convert it to PDF
Download the PDF file
Use a document editor like Word, Google Docs, or Pages
Insert the JPEG into a blank document
Export or download the document as a PDF
On a Mac, open the JPEG in Preview
Go to File
Select Export as PDF
Save the PDF file
On Windows, open the JPEG in Photos or Paint
Use Print and choose Microsoft Print to PDF
Save the output as a PDF