Only the items that are visible with Hand command selected remain and change into shape objects. Movies: The movies are no longer available.Form fields: All form fields can no longer be filled or modified.The stamps that are created with images change into image objects stamps created with a PDF page change into text/image/shape objects based on the content on that page. Stamps: The stamps in the stamp palette provided by Foxit change into shape objects and the dynamic information (if any) embedded in the stamps changes into text objects.(Note: The file attachments added with the File Attachment command in the Edit tab are not changed after flattening.) File attachments: For a file attachment added with the File command under the Comment tab as a comment, only the icon 001.png remains (which also changes into a shape object), while the file is removed from the document and can no longer be opened.Typewriter, Callout, Text Box: the boxes or frames change into shape objects, while the text in the comment changes into text object.However, the text in their pop-up notes is lost. Text Markup, Note comments, and Drawing markup comments: The markups and Note comment icons change into shape objects.This feature is often used when you want all the comments and form fields to be permanent so that the document receivers cannot modify them (unless they change them with editing tools), or when you want to lock the PDF document after completing the form fields to ensure that the document can be viewed consistently on all devices.Īfter flattening, many items in the document are changed: The Flatten Pages feature can make annotations and form fields in the PDF file become part of objects of the PDF pages. Firstly,please help to take a look at the following contents about what flatten feature does:

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