While adding or editing your product, enable Custom/Third-Party Integration, and then in the Product Notification URL field, enter this URL (all on one long line):

https://www.e-junkie.com/ecom/o_plug.php?ej_stamp_pdf=true&pdf_allow_copy=y&pdf_allow_print=y&pdf_pwd=

1. If your original PDF is protected with a password, simply add the password to the very end of the URL, after the &pdf_pwd=
   • If your PDF does not have any passwords, you can simply remove the &pdf_pwd= part from the end of the URL;
   • If your PDF has a Master password and a different User (read-only) password, use the Master password in the URL;
   • If your PDF has a Master password that is the same as its User (read-only) password, use that password in the URL;
   • If your PDF does not have a Master password and only has a User (read-only) password, use that password in the URL.
2. The following options are not recommended, as they depend on the buyer's PDF reader software respecting them, and they make for an unsatisfactory customer experience:
   • If you do not want the buyer to be able to print your PDF, replace &pdf_allow_print=y with &pdf_allow_print=n
   • If you do not want the buyer to be able to copy-paste content from your PDF, replace &pdf_allow_copy=y with &pdf_allow_copy=n (note that copy-pasting is different from extraction, which we disable by default, but we do allow extraction by screen readers for the visually-impaired);
3. If you are already using our o_plug.php URL for any of the other built-in integration methods we offer, just append the PDF-stamping parameters &ej_stamp_pdf=true&pdf_allow_copy=y&pdf_allow_print=y&pdf_pwd= at the end of your existing o_plug.php URL, as explained in more detail here.

Each Stamped PDF we issue to buyers will always be locked with a randomized Master password, which prevents editing/extracting the file's contents or editing its settings, regardless of your file's original Master password or whether the file was even password-protected to begin with. Your file's original User (read-only) password should normally be retained if it also has a Master password, but this may not be possible with all PDFs due to varying implementations of the PDF specification (see also Adding a read-only password below).

In addition to the randomized Master password we always add to every Stamped PDF, you can also optionally have the Stamper add a User password that would be required to open your Stamped PDFs for read-only viewing. This can be an arbitrary password you specify that would be the same for every Stamped copy of your PDF, or you can have the Stamper apply the order's Transaction ID as a unique password for each buyer's copy of your PDF. This would replace your original file's User password if it has one.

Bear in mind that a User password mostly just inconveniences legitimate buyers while being rather ineffective as a security measure when you're issuing the password with the file, since anyone who wants to share their file would also commonly share the password along with it. It's like putting a padlock on something but leaving the key right there in the lock. However, in the rare case where someone might share their file and forget to include the password with that, at least that shared copy would be unopenable without the password.

To have the Stamper add this User password, just add &pdf_userpwd= to the Stamper URL (explained above) for your product, like so:

https://www.e-junkie.com/ecom/o_plug.php?ej_stamp_pdf=true&pdf_allow_copy=y&pdf_allow_print=y&pdf_userpwd=

You can add a password after the &pdf_userpwd= to apply that as the User password for every Stamped copy; however, if you leave it as just &pdf_userpwd= without specifying a password, the Stamper would apply each order's Transaction ID as a unique User password for that order's Stamped file. In that latter case, your thank-you page and/or thank-you email templates can use the template code [%txn_id%] to insert the Transaction ID that the buyer should use as a password to open their file.

If you are using special compiler software to protect your e-book, you can still use our service. We can support virtually any eBook compiler that you might be using, as we support stored codes, generated codes, redirection and other features which the compilers rely on for your product activation/unlocking. However, these cannot be combined with our PDF Stamping feature (explained above). These are a few eBook compiler solutions we're familiar with:

• How to sell e-books created with ebookgold?
  Ebookgold will give you HTML code that you will have to put up on a page on your website. You have to enter the URL to that page in their admin area as the approved URL for password generator.

  Once you do that, place that URL in the email message that your buyer receives. You can do that while adding/editing your product in E-junkie Seller Admin.

• How to sell ebooks created with EBook Maestro?
  You can generate keys in the "Reg. Codes" subsection of EBook Maestro. Please clear Reg. Name before you generate the keys. Once you have the keys and the EXE file of the ebook:
  • Go to E-junkie Seller Admin and click Add New Product;
  • Under the section Digital Delivery > Deliver Codes, tick the box for Stored Codes;
  • This will reveal a box where you can paste in your license codes (one code per line);
  • Click Submit to apply changes and proceed to the Button Codes screen;
  • From here you will be able to upload your file and also get the purchase button codes you need copy and paste into your website.