<ul data-eligibleForWebStory="true">You can convert a JPG file to PDF on Windows without third-party apps or internet access using the default Photos app.The Photos app allows you to convert single or multiple JPG files to PDF format.To convert, open the Photos app, select the photo(s), click on the Printer icon, choose Microsoft Print to PDF, and save the file.Alternatively, you can use iLovePDF, a website offering PDF tools, to convert JPG files to PDF with options to adjust orientations and margins.To use iLovePDF, upload the JPG file, select settings like Page Size and Orientation, and click Convert to PDF.