Selling Ebooks and PDF Stamping

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Sell Your eBooks in a Snap

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The eBook industry has led to an independent publishing revolution. Aspiring and established authors alike are finding success building their own audiences through blogging and social media and selling their eBooks direct to readers.

While you could work to get your eBook on iTunes, Amazon, Google Play and other major marketplaces, you end up splitting a substantial percentage of your revenues with them. That might be fine when reaching new audiences through those platforms, but when selling to visitors of your own site, blog or social media, you are better off utilizing an ecommerce tool like E-junkie, rather than sending your customers, and a lot of their money, away to a third party.

E-junkie provides simple drop-in code, secured payments and protected file delivery of the eBook through an automated system, all at a

low monthly fee

with no transaction fees.

We additionally offer a PDF security service that stamps the buyer’s name, email and their unique Transaction ID on the top-left of each page of the PDF they receive before they download it. Unlike DRM (Digital Rights Management), this is a simple, non-intrusive way to deter buyers from sharing their PDFs. In contrast to the various DRM solutions available, our PDF Stamping feature allows a pleasant and hassle-free buyer experience and produces a file that all PDF reader software and e-reader devices can handle without any trouble, which also eliminates the need for merchants to handle customer support issues commonly encountered with DRM and proprietary eBook file formats.

If you don’t wish to issue Stamped PDFs or are just selling ebooks in DOC or any other document format, it’s just like

selling any other file

; each buyer will get an identical copy of whatever file you upload for the product. We can also support many

third-party eBook compilers and file-locking solutions


We can stamp the buyer’s name, email and their unique Transaction ID on the top-left of each page of the PDF they receive before they download it. Unlike DRM (Digital Rights Management), this is a simple, non-intrusive way to discourage buyers from sharing their PDFs. Unlike the various DRM solutions we investigated, our PDF Stamping feature allows a pleasant and hassle-free buyer experience and produces a file that all PDF reader software can handle without any trouble, which also eliminates the need for merchants to handle customer support issues commonly encountered with DRM.

Example Stamped PDF:

A Few things to keep in mind

  1. This only works for

    Single File Download

    products which have a single PDF file uploaded as-is; it will not work for products using

    Bundle Other Products

    nor for PDFs enclosed within some other file type such as a ZIP archive;

  2. Do not

    enable this for products which are remotely hosted (file stored on your server instead of uploaded to ours); although it may probably work fine most of the time, it can also have unpredictable results in some scenarios;
  3. Issuing a link manually via the

    Send free download link

    function in your Seller Admin


    issue a Stamped file if the product has PDF Stamping set up (this is a good way to test your configuration);
  4. Free download links issued via the


    function in your Seller Admin


    issue Stamped files;
  5. Each buyer’s original link for a Stamped PDF will always download their original Stamped file, even if you subsequently update the product’s file or reactivate the buyer’s link (unlike all other non-Stamped downloads, which always issue a copy of the latest file uploaded to the product);
  6. You can only re-activate links for Stamped PDFs

    up to one year

    after the link was first issued; after that, you can use

    Send free download link

    to issue them a replacement link for a Stamped copy of the latest file uploaded to the product.
  7. Although we have tested it with many various kinds of PDFs, there may still be certain PDFs that could have problems with Stamping. We recommend that you enable it for only one of your products first, then use

    Send free download link

    (in Seller Admin under Manage Buyers) to send yourself a link to see how your PDF is coming out. If you are happy with the results, then you can enable it for your other PDFs.
  8. 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 altering its permissions, 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.


  1. If you haven’t done so yet, add the product in Seller Admin and


    your PDF file to it;
  2. Go to

    Manage Products > Edit Products

    , select the product, and click

    View/Edit Product

  3. Scroll down to the


    section and click the

    PDF Stamper

  4. Tick the box

    Enable Stamper

  5. Optional settings/permissions:

    • PDF Password

      – if your original PDF file is locked with a password:

      • Leave this blank if your PDF

        does not have

        any passwords;
      • If your PDF has a Master password, enter that here (regardless of whether it also has a User (read-only) password);
      • If your PDF


        has a User (read-only) password


        a Master password, enter the User password here.


      we can only Stamp password-locked PDFs where the Compatibility option has been set to “Acrobat 7.0 And Later” (PDF v1.6) or lower,


      “Acrobat X And Later” (PDF v1.7) nor higher. If you are having problems getting Stamping to work for a file with a password, try uploading a file with no password — remember, the Stamper would still add a random Master password to every Stamped copy anyway. This version limitation

      does not apply

      to PDFs which are


      password locked.

    • Read-only PDF Password

      – if you want to require a password to open Stamped copies, enter the password buyers should enter here:

      • Leave this blank if you don’t want to requrie buyers to enter a password to open your file;
      • Any password you enter here would replace your original PDF file’s User (read-only) password, if it has one;
      • Bear in mind that a Read-only Password is only effective security when the recipient can be trusted not to share it with anyone; this mostly just inconveniences legitimate buyers while being rather ineffective for security, since anyone who wants to share their file would also commonly share the password as well — it’s like putting a padlock on something but leaving the key right there in the lock;

      • Tip:

        you can enter


        here to apply each buyer’s unique Transaction ID as their read-only password, then use the template tag

        in your E-junkie Thank-you Page and/or Thank-you Email template to insert that ID/password where you want the buyer to see it.

    • Allow copy

      * – if you want to let buyers copy-paste text from their Stamped PDF;

      (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.)

    • Allow print

      * – if you want to let buyers print their Stamped PDF.

    * Unticking those last two options are

    not recommended

    , as they they make for an unsatisfactory customer experience and may not be enforced by all PDF reader apps.

  6. Click


    to apply the new PDF Stamper settings for your product.

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 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


      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.

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A quick note about the reviews on this site: I am an affiliate for every product I review. The vendors of these products give me them without charge in order for me to test them. However all my reviews are done as honestly as possible and I make no promises to the vendor prior to writing my review. Should you click a link on this site that takes you to a paid product this link will be an affiliate link and I will be paid a percentage of the sales price should you decide to purchase that product.
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