Add PDF viewer documentation

[cindylay]

Category

• Content fix
• New article

What's in this Pull Request?

This PR adds a new PDF Preview section to the Using File Previews article, documenting the query parameters available for enhancing the SharePoint Embedded static PDF previewer.

Changes

• Added ## PDF Preview section to using-file-preview.md introducing the embed query parameter mechanism, including:
  • An explanation of what webUrl is and how to retrieve it from the driveItem Graph endpoint
  • A syntax example showing how to combine multiple parameters in a single embed JSON object
  • A note that additional parameters will be documented as the PDF previewer grows
  • Print (mpp) — documents the mpp boolean parameter that enables the print icon and Ctrl+P functionality
  • Sticky Notes (mpsn) — documents the mpsn boolean parameter that shows sticky note content in a PDF
• Updated ms.date to reflect the current revision date

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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[learn-build-service-prod]

Learn Build status updates of commit 53cc837:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/embedded/development/tutorials/using-file-preview.md	✅Succeeded	View

For more details, please refer to the build report.

[Copilot]

Pull request overview

Adds documentation for enhancing SharePoint Embedded’s PDF preview experience by appending embed query parameters to a DriveItem webUrl in the existing “Using File Previews” tutorial.

Changes:

• Updated ms.date to the current revision date.
• Added a new “PDF Preview” section describing an embed query parameter mechanism.
• Documented two PDF preview parameters: Print (mpp) and Sticky Notes (mpsn).

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[Copilot]

The syntax example uses <webUrl>&embed=..., which only works if webUrl already has a ? query string. Consider documenting the correct delimiter (?embed= when there are no existing query params, otherwise &embed=) to avoid readers building invalid URLs.

[Copilot]

The embed value contains JSON with quotes/braces that should be URL-encoded when used in a query string (e.g., via encodeURIComponent), otherwise the example URL is not valid in many clients/browsers. Update the examples to show an encoded embed value (or explicitly state that the JSON must be URL-encoded).

[learn-build-service-prod]

Learn Build status updates of commit d8966a9:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/embedded/development/tutorials/using-file-preview.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.