Installation and Activation

This guide walks through every step from purchasing TNC FlipBook 3D to seeing your first FlipBook running. Total time: about 5 minutes.

What you'll need

Before you install:

  • A WordPress site running WordPress 5.6 or later and PHP 7.4 or later. Most hosts have this by default. To check, go to Tools → Site Health → Info in your WordPress admin.
  • Administrator access to the WordPress site.
  • Your license key, sent by email after purchase.
  • A PDF or set of images to put inside the FlipBook (optional for installation; you can add this later).

Step 1 — Buy the plugin

  1. Open tncflipbook.com and pick a plan that fits your needs (single site, multi-site, agency, or lifetime).
  2. Complete the checkout.
  3. You'll receive two things by email:
    • A license key — a long string of letters and numbers.
    • A download link — leads to your account dashboard with the plugin zip file.

If you don't see the email within a few minutes, check your spam folder. If still missing, contact support from your account dashboard.

Step 2 — Download the plugin zip

  1. Click the download link from your email, or visit tncflipbook.com/account and sign in.
  2. Under Downloads, click Download next to "TNC FlipBook 3D".
  3. A zip file (e.g. tnc-flipbook-3d-1.0.0.zip) downloads to your computer. Do not unzip it — WordPress wants the zip as-is.

Step 3 — Upload and install

  1. In your WordPress admin, go to Plugins → Add New.
  2. Click Upload Plugin at the top of the page.
  3. Click Choose File, pick the zip you downloaded, and click Install Now.
  4. Wait while WordPress unpacks the file (usually a few seconds).
  5. Click Activate Plugin.

Once activated, you'll see a new FlipBooks menu in your WordPress admin sidebar. A welcome page appears the first time you activate — feel free to skim it.

Step 4 — Activate your license

License activation unlocks Pro features and enables automatic updates from your WordPress dashboard whenever a new version ships.

  1. Go to FlipBooks → License.
  2. Paste your license key into the License Key field.
  3. Click Activate License.

If activation succeeds, you'll see a green Active status. Your license is now bound to this site, using one of your license slots.

If activation fails:

  • Check for stray whitespace at the start or end of the key when pasting.
  • Confirm the site URL you're activating from matches the URL on file (case-sensitive — https://www.example.com is different from https://example.com).
  • If you've moved a site or changed domain, contact support to reset your license slots.

Step 5 — Create your first FlipBook

You're now ready. Continue to Quick Start for a one-minute walkthrough that publishes your first FlipBook.

What gets installed

After activation, TNC FlipBook 3D adds:

  • A FlipBooks menu in the admin sidebar with sub-pages: All FlipBooks, Add New, Settings, License, Migration, PDF Import, Toolkit, Addons, Welcome, Ideas.
  • A FlipBook post type for storing your FlipBooks.
  • Three Gutenberg blocks (Embed, Link, Image Link).
  • Three shortcodes (tnc-flipbook-3d-embed, tnc-flipbook-3d-link, tnc-flipbook-3d-image-link).
  • The viewer assets (JavaScript, CSS, audio for flip sounds) that load only on pages that show a FlipBook.
  • A REST API namespace at /wp-json/tnc-flipbook-3d/v1/ for the viewer and admin actions.

Nothing is added to your theme, no global filters are changed.

Updates

When your license is active, plugin updates appear in Dashboard → Updates and on the Plugins page just like any other WordPress plugin. Click Update and WordPress fetches the latest version.

If your license expires, you can keep using the plugin but won't receive new updates until you renew. Renew from tncflipbook.com/account and your update notifications resume.

Moving the plugin to another site

If you want to use the same license on a different site:

  1. On the old site, go to FlipBooks → License and click Deactivate License. This frees the slot.
  2. On the new site, install and activate the plugin, then paste your license and activate.

Always deactivate first. Deleting a plugin without deactivating leaves the slot locked, and you'll have to ask support to reset it.

Troubleshooting installation

"The link you followed has expired." The zip is larger than your server's upload limit. Either increase the upload_max_filesize and post_max_size PHP limits, or upload the plugin via SFTP (place the unzipped folder in wp-content/plugins/, then activate from the Plugins page).

"Plugin could not be activated because it triggered a fatal error." Usually a PHP version mismatch. Confirm your server runs PHP 7.4 or later. Some older servers need an upgrade from the host control panel.

License key won't activate.

  1. Re-copy the key — extra whitespace breaks it.
  2. Confirm the site URL on file matches your current URL exactly (https/http, www/no-www).
  3. If you've used all license slots, deactivate one of the existing sites first.

No updates appearing despite valid license. Go to Dashboard → Updates and click Check Again. If still no update, confirm your license is Active under FlipBooks → License, then click Check License there.

Next steps

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