Which method is suitable for specifying the location of a PDF file?

A relative path is suitable for specifying the location of a PDF file because it provides a way to reference the file based on its position relative to the current working directory of the application or script being executed. This method is useful for maintaining portability, allowing the script or application to locate the file correctly regardless of where it is moved, as long as the relative structure remains intact.

Using a relative path helps avoid hard-coding specific locations that may differ across different environments or setups. For instance, if the PDF file is in a subfolder of the current directory, the relative path can be simply referred to as "subfolder/filename.pdf". This makes it easier to share the code with others or deploy it in different systems without needing to adjust for absolute paths.

Formulating the file location through a network address or cloud services can complicate accessibility issues if network conditions change or the file is relocated. A universal file path, while useful, may not be as flexible as a relative path, especially when dealing with different systems or execution environments.