Goodnotes is capable of importing a variety of file formats that can be annotated:
Image (.jpg, .png)
Goodnotes document (.goodnotes)
Goodnotes backup (.goodnotes.zip). See ‣.
Comma- or Tab-Separated Values file (.csv, .tsv). The app can import a file in this format to create a study set. See Study Set.
Word (.doc, .docx) and PowerPoint (.ppt, .pptx) (on iPadOS/iOS only)
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Note that while Goodnotes can import Word and PowerPoint files directly on iPadOS/iOS, it may produce better results if you import PDF versions of these files instead. If you do import Word or PowerPoint files, Goodnotes will internally convert them to PDFs, but the final formatting may not be as accurate.
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From within the app
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Depending on your subscription plan, you can choose New > Import from Cloud Storage to import files directly from a cloud storage. Once you’ve connected a cloud storage to Goodnotes, you’ll see it in the New list:

Import from Cloud Storage feature: before any cloud storages are connected

Import from Cloud Storage feature: after any cloud storages are connected
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From an external app
Tap one or more title fields to rename the document(s).
Tap Location at the top and choose the destination folder.
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Tap or click a folder with subfolders to expand/collapse its contents. Choose the New Folder icon in the top-right to create a new subfolder within your selected location.
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