Hint

09 - Meow!
Can you lure the cat out of the hiding place?

meow.pdf

Approach

Opening the PDF in a hex editor and searching for the string image you see that there appears to be multiple images in the PDF.

There are plenty of online tools to extract the images from the PDF: http://www.pdfaid.com/ExtractImages.aspx

One of the images from the PDF is our flag.

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