Docs: New Bidder — PGAM Direct (#6536)

* Docs: New Bidder — PGAM Direct

Adds the docs page for the new pgamdirect bidder adapter.

Code PR: prebid/Prebid.js#14763

GVL 1353. Related to existing pgamssp adapter; this doc explicitly
calls out the relationship so publishers browsing the bidders list
understand which adapter is which.

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

* Update dev-docs/bidders/pgamdirect.md

---------

Co-authored-by: Muki Seiler <muuki88@users.noreply.github.com>

Author: mastap150

dev-docs/bidders/pgamdirect.md

@@ -0,0 +1,138 @@
+---
+layout: bidder
+title: PGAM Direct
+description: Server-to-server OpenRTB 2.6 adapter from PGAM Media (self-hosted). Dynamic floors, transparent margins, schain integrity. Related — pgamssp (legacy, TeqBlaze-hosted).
+biddercode: pgamdirect
+media_types: banner, video, native
+gvl_id: 1353
+prebid_member: false
+schain_supported: true
+tcfeu_supported: true
+gpp_sids: tcfeu, usnat, usstate_all
+usp_supported: true
+coppa_supported: true
+pbjs: true
+pbs: false
+safeframes_ok: true
+deals_supported: true
+floors_supported: true
+fpd_supported: true
+userIds: all
+multiformat_supported: will-bid-on-any
+ortb_blocking_supported: partial
+privacy_sandbox: paapi
+sidebarType: 1
+---
+
+## Note
+
+PGAM Direct is the self-hosted server-to-server OpenRTB adapter operated by PGAM Media LLC. For the legacy TeqBlaze-hosted integration, see [pgamssp](/dev-docs/bidders/pgamssp.html). We plan to migrate publishers from pgamssp to pgamdirect over 2026; both will coexist on the bidders list during that window.
+
+Key differences from pgamssp:
+
+- Canonical OpenRTB 2.5/2.6 (not a proprietary envelope)
+- Dynamic rolling-quantile floor pricing on our bidder, published per `(dsp × placement × geo × device)` cell
+- Transparent margin enforcement (5% hard floor, compile-time enforced, never zeroable from config)
+- schain integrity — `pgamssp.com,1353` appears verified on every outbound request; complete=1 enforced
+- HMAC-signed `burl` / `nurl` to defeat pixel replay
+- Account onboarding via `orgId` issued by PGAM Media; reach out to your account manager for yours
+
+## Bid Params
+
+{: .table .table-bordered .table-striped }
+| Name          | Scope    | Description                                                              | Example                    | Type      |
+|---------------|----------|--------------------------------------------------------------------------|----------------------------|-----------|
+| `orgId`       | required | Your publisher identifier at PGAM Media. Issued during onboarding.       | `'pgam-acme-publisher'`    | `string`  |
+| `placementId` | optional | Free-text placement identifier; mapped to `imp.tagid` on the bid request | `'leaderboard-728x90'`     | `string`  |
+| `bidfloor`    | optional | Per-placement USD bidfloor; bidder still enforces its own minimum        | `1.25`                     | `number`  |
+
+## Example — Banner
+
+```javascript
+pbjs.addAdUnits([{
+  code: 'ad-slot-1',
+  mediaTypes: {
+    banner: { sizes: [[300, 250], [728, 90]] }
+  },
+  bids: [{
+    bidder: 'pgamdirect',
+    params: {
+      orgId: 'pgam-acme-publisher',
+      placementId: 'leaderboard-728x90'
+    }
+  }]
+}]);
+```
+
+## Example — Video (instream)
+
+```javascript
+pbjs.addAdUnits([{
+  code: 'video-adunit',
+  mediaTypes: {
+    video: {
+      playerSize: [[640, 480]],
+      mimes: ['video/mp4', 'application/javascript'],
+      protocols: [2, 3, 5, 6],
+      api: [1, 2],
+      minduration: 5,
+      maxduration: 30,
+      placement: 1,
+      plcmt: 1,
+      linearity: 1
+    }
+  },
+  bids: [{
+    bidder: 'pgamdirect',
+    params: {
+      orgId: 'pgam-acme-publisher',
+      placementId: 'preroll-15s'
+    }
+  }]
+}]);
+```
+
+## Example — Native
+
+```javascript
+pbjs.addAdUnits([{
+  code: 'native-adunit',
+  mediaTypes: {
+    native: {
+      image: { required: true, sizes: [150, 50] },
+      title: { required: true, len: 80 },
+      sponsoredBy: { required: true }
+    }
+  },
+  bids: [{
+    bidder: 'pgamdirect',
+    params: { orgId: 'pgam-acme-publisher' }
+  }]
+}]);
+```
+
+## Privacy
+
+The adapter forwards only what Prebid.js supplies:
+
+- `source.ext.schain` — the publisher's supply-chain object, if set
+- `user.ext.eids` — registered Prebid User-ID modules
+- `regs.ext.gdpr` / `regs.ext.gdpr_consent` — TCF v2 if `consentManagement` is enabled
+- `regs.ext.us_privacy` — CCPA if `consentManagementUSP` is enabled
+- `regs.gpp` / `regs.gpp_sid` — GPP if configured
+- `regs.coppa` — from `ortb2.regs.coppa`
+
+No cookies are set on the publisher's domain by this adapter.
+
+## Migrating from pgamssp
+
+Publishers already integrated via [pgamssp](/dev-docs/bidders/pgamssp.html) can run both adapters in parallel during the migration window:
+
+```javascript
+bids: [
+  { bidder: 'pgamssp',    params: { placementId: 'your-placement' } },
+  { bidder: 'pgamdirect', params: { orgId: 'pgam-your-slug', placementId: 'your-placement' } }
+]
+```
+
+Prebid's auction picks the higher bid per impression, so you get the best of both while you evaluate.