# Upload Existing PDFs

Use this format when you already have a finished PDF form.

Upload Existing PDFs let you place Salesforce data on top of a fixed PDF background.

If you need flexible layout, related lists, or page settings, use [PDF Templates](/sdocs/template-architecture/document-formats/pdf-templates.md) instead.

{% hint style="info" %}
Pick **Upload Existing PDFs** when exact field placement matters most.

Pick **PDF Templates** when dynamic layout matters most.
{% endhint %}

### Use this format when

* You already have the final PDF design.
* You need drag-and-drop field placement.
* You want to fill a fixed form with Salesforce data.

### Keep these limits in mind

* Portrait only
* No related lists
* No standard headers, footers, or page settings

### Start with the guide that fits your task

<table data-card-size="large" data-column-title-hidden data-view="cards"><thead><tr><th>Title</th><th>Description</th><th data-card-target data-type="content-ref">Target</th></tr></thead><tbody><tr><td><strong>How To: Upload PDF To S-Docs</strong></td><td>Set up a PDF-Upload template and understand how the format works.</td><td><a href="/spaces/WKNnJmhJBQwhdk5WBFsi/pages/e141c0ee4f4c35065d987559f665339646cc21dc">/spaces/WKNnJmhJBQwhdk5WBFsi/pages/e141c0ee4f4c35065d987559f665339646cc21dc</a></td></tr><tr><td><strong>How to: Center Text With PDF-Upload Merge Fields</strong></td><td>Center overlay text by updating the field style settings.</td><td><a href="/spaces/WKNnJmhJBQwhdk5WBFsi/pages/5dae095a0d3cab02b324f17b8c924cf0ed9641a0">/spaces/WKNnJmhJBQwhdk5WBFsi/pages/5dae095a0d3cab02b324f17b8c924cf0ed9641a0</a></td></tr><tr><td><strong>Quick Reference: Named Queries for PDF Upload Templates</strong></td><td>Use named queries when you need dynamic values beyond simple field overlays.</td><td><a href="/spaces/WKNnJmhJBQwhdk5WBFsi/pages/199a06b95808b58bed7a92d5850d47eec12a690d">/spaces/WKNnJmhJBQwhdk5WBFsi/pages/199a06b95808b58bed7a92d5850d47eec12a690d</a></td></tr></tbody></table>


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```

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