By exporting and importing comments, you can merge comments from multiple files into a single PDF file for easier review. You can export all comments from a PDF file and then import them into a different file or another version of the same document.

To export comments

You may want to export comments and send them to someone, or need to import comments you receive. As you export comments, you create a XFDF file that contains comments. Then you can import those comments from the XFDF file into the original PDF file.

  1. Open a PDF file with comments and do either of the following:

    • Choose Comment > Comment Processing > Export Comments .

    • In the Comment panel, click Options and choose Export Comments… from the options.

  2. In the Export Comments dialog box, name the XFDF file (.xfdf), decide a place to save it, and click Save.

  3. You can then import the comments from the XFDF file to another version of the PDF file.

To import comments

  1. Open a PDF file you want comments to be added to and do either of the following:

    • Choose Comment > Comment Processing > Import Comments .

    • In the Comment panel, click Options and choose Import Comments… from the options.

  1. In the Import Comments dialog box, select a XFDF file and click Open.

  2. The comment positioning is the same as that of the file they are imported from. If comments appear to be out of place, the source and recipient PDF file might be different. For instance, if you import comments from a ten-page document into a two-page document, only comments from the first two pages will appear.

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