Cannot open a downloaded pdf file..."The file couldn't be opened because it isn't in the correct format."

I have had this problem several times lately: I cannot open a downloaded pdf file. The error message reads: "The file couldn't be opened because it isn't in the correct format." But, of course, it is a pdf file.

My MacBook Pro (2.5 Ghz Intel Core i5) is running OS X 10.9.4. Here is what happens when reading an online user manual that I want to save to the Desktop and read later as a PDF file on my iPad or phone. With Safari I will select "Export As PDF" and the file shows up on the desktop. Even after multiple trials, there will be a dialogue box indicating the file cannot be opened. If I check the file info, the size is "zero." Trying to save the file as a pdf using the Print menu yields the same results. I have tried both of these methods using Preview, Adobe Reader, and PDF Pen Pro. This strange behavior also occurred several weeks ago and I finally abandoned the effort. But when the same thing happens twice, it becomes an issue that needs to be resolved.

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  • Safari won't open up downloaded pdf file

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    Model Name:          iMac
      Model Identifier:          iMac12,1
      Processor Name:          Intel Core i5
      Processor Speed:          2.5 GHz
      Number of Processors:          1
      Total Number of Cores:          4
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      Memory:          4 GB
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  • I cannot open a downloaded PDF document, why? I

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