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Professionally created PDFs, such as the Canadian biometrics confirmation letter, are typically created using Adobe software. Adobe Acrobat is a widely used program for creating and managing PDF documents because it offers a range of features for professional document creation, including form fields, security settings, and electronic signatures. While Microsoft Word can also be used to create PDFs, Adobe software is generally preferred for official documents due to its advanced capabilities and standardization in professional settings. If you have any more questions or need further assistance, feel free to ask!