You have a PDF file and TXT file with coords like
```
451, 896
2, 1302
...
```

It is obvious that the first number is a page and maybe the second is a char?

Decoding the PDF file:

```
import PyPDF2

reader = PyPDF2.PdfFileReader('history.pdf')
num = reader.numPages

out = ''

for key in open('PDFuck.txt').readlines():
tokens = key.split(',')
kf = int(tokens[0].strip())
ks = int(tokens[1].strip())
page = reader.getPage(kf)
txt = page.extractText()
out += txt[ks]

print out
```

Output:
```
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
```

Base64 - decode:
```
Congratulations! if you made it that far that means either you are one motivated bastered, or you know python -_-... Anyway... follow this link : https://www.youtube.com/watch?v=f7sxwHLRKKg
hint: ..-. .-.. .- --. / .--. .-.. ..- ... / .---- ---... ----- ---.. -....- .---- ---... .---- ---.. / .-.. --- .-- . .-. -.-. .- ... . / .-- .. - .... / ..- -. -.. . .-. ... -.-. --- .-. . / .- ... / ... .--. .- -.-. . ... / .-- .-. .- .--. .--. . -.. / .-- .. - .... / -.-. ..- .-. .-.. -.-- / -... .-. .- -.-. -.- . - ...
```

Morse:
```
FLAG PLUS 1:08-1:18 LOWERCASE WITH UNDERSCORE AS SPACES WRAPPED WITH CURLY BRACKETS
```

The song lyrics: [https://www.flashlyrics.com/lyrics/box-codax/i-swam-with-the-otter-03](https://www.flashlyrics.com/lyrics/box-codax/i-swam-with-the-otter-03)

`flag{i_swam_with_the_otter_and_we_played_in_the_pool}`