PDF Portfolios require Flash Player. As this cannot be installed on iOS devices, you will never see Portfolios displayed properly.

 What you *should* see is the cover page with a series of attachments.

A lot of features of the PDF format do not work on mobile wireless devices because the chips used to make them do not have the features that the computer CPUs for desktop, laptop and netbooks have.

When you try to open the Portfolio itself, it get’s stuck on a page displaying the message that I need to download Acrobat X or Adobe Reader X or later. 

Instead of using PDF Portfolios, follow the below guide for combining PDF's into a single file

Learn how to combine multiple files into a single PDF with Adobe Acrobat DC. You can combine multiple PDF documents or a wide variety of file types, including spreadsheets, images, and emails.


1. Open the Combine Files tool 

Open the Combine Files tool using the shortcut in the right pane or from the Tools center, accessed at the top left.

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2. Add files to combine 

Choose from a variety of file types — multiple PDF files, Microsoft Word documents, Microsoft Excel spreadsheets, Microsoft PowerPoint presentations, jpg images, other images, emails, and more — to merge into one PDF.

  1. Select Add Files and navigate to the location of the files you wish to add. You can add files or a folder from your computer, or add content directly from a scanner, web page, or your Clipboard.
  2. Select one or more files to add.
  3. Click the Add Files button.

Repeat these steps as many times as necessary to include all of the content you’d like to combine into your final PDF. Alternatively, you can drag and drop files you want to combine directly from your desktop or file system.

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3. Preview document contents 

Once you add all of your PDF files and other documents, you can hover your mouse over one of the file thumbnails and click the magnifying glass to see an enlarged preview.

Click the X in the upper right-hand corner to close the preview.

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4. Arrange pages in multi-page documents 

You can expand multi-page documents by clicking the expand icon that appears at the top right of the file thumbnail when you hover your cursor over it. When you click the expand icon, you will see thumbnails of each page in the file to let you verify which pages you want to add to the combined PDF.

If desired, you can rearrange individual pages in a document or around other documents in the Combine Files dialog box.

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5. Delete pages 

To remove unwanted pages or files, click the file or page preview, then click the Remove trash can icon.

Note: Use Shift + click to select a series of pages to remove. Use Cmd (Mac) + click or Ctrl (Win) + click to select specific pages to remove. When you select pages, the pages are only removed from the combined PDF file. The original file remains intact.

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6. Reorder pages 

To reorder pages, click the page thumbnail and drag it to its new location. A blue line indicates where the page will be placed once you release your mouse.

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7. Click Combine to merge the files 

When you’re finished, click Combine. Acrobat automatically names (e.g., Binder1.pdf) and opens the new merged PDF file once it finishes processing. From here, you can save, rename, edit, and review the new document as necessary.

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