|User Name||Thread Name||Subject||Posted|
|GUEST,Grishka||Tech: Sony PRS-505 for music scores (7)||RE: Tech: Sony PRS-505 for music scores||01 Oct 15|
The PDF format includes options for authors to obfuscate the contents, so that the file is unfit for any processing other than plain display. This might be the meaning of "Protected page". I guess that your ebook reader tries to split the file into smaller pages and thus fails.