The Tips - Mac Kung Fu - page 253

can be unofficially utilized to insert hand-drawn sketches—see Tip 298, Add
Sketches to PDFs , on page 318 .
To learn how to create a new PDF from images, see Tip 315, Convert Images
into a PDF , on page 329 .
Password Protecting a PDF
You can encrypt a PDF file so that a password is required to open it. To do
so, open the PDF in Preview, and then click File→Export. In the Format drop-
down list of the dialog box that appears, make sure PDF is selected. Then put
a check in the Encrypt box and type a password beneath this (type it again
in the Verify field to confirm).
Note that the protection is primitive compared to what you might be used to
with programs such as Adobe Acrobat 17 —there's no way to protect PDFs so
that copying text or images is prohibited, for example. The password protection
merely protects the document from being opened. Once opened, the user is
free to do whatever they like in the file, including saving an unencrypted copy.
Create a New PDF from a Page of Another
Ever wanted to create a new PDF from a page within a larger PDF? Just make
sure the page is displayed within the Preview window, and select COMMAND + C
(or click Edit→Copy). Then click File→New From Clipboard. This will create
a new PDF containing just that page.
This trick is useful if you also want to print a single page—do the previous
steps to isolate a single page, print it, and then close the new file without
saving it.
Quickly Email a PDF Extract
The previous tip can be adapted to allow the emailing of PDF pages, which
can be useful if you want to send the page to friends or colleagues. Just
ensure the page is visible in Preview, and then hit COMMAND + C (or click Edit→
Copy) to copy the page to the clipboard. Then start a new Mail message and,
in the body of the email, just hit COMMAND + V (or click Edit→Paste). This will
paste the page as a completely new PDF attachment, ready for sending.
Pasting PDF pages also works in TextEdit, although with a serious caveat—
the document into which you paste will be converted into Rich Text Document
with Attachments format ( .RTFD ), even if it's already in an alternative format
17. HTTP://WWW.ADOBE.COM/PRODUCTS/ACROBAT.HTML