pdferrors

var (
	ErrFileNotFound     = errors.New("file not found")
	ErrNotPDF           = errors.New("not a valid PDF file")
	ErrInvalidPages     = errors.New("invalid page specification")
	ErrPasswordRequired = errors.New("password required")
	ErrWrongPassword    = errors.New("incorrect password")
	ErrCorruptPDF       = errors.New("PDF file is corrupted")
	ErrOutputExists     = errors.New("output file already exists")
)