[JFWooten4]

Summary

Add More PDF tools → Copy link to highlighted text. Selecting PDF text and activating this command copies a shareable link to the original PDF using Chromium's supported #page=N:~:text=... text-fragment syntax.

• Normalize selected PDF text, percent-encode the directive (including grammar-significant hyphens), and abbreviate very long selections at a word boundary.
• Use the original PDF URL, not the extension URL, preserving its query parameters and including the physical PDF page as a navigation hint.
• Recognize text-fragment links when a URL is opened in PDF-magic, search the PDF's extractable text, navigate to the preferred page and scroll to the matching passage with the existing search highlighter.
• Keep the existing Copy page link, ordinary text copying and automatic copying preference (PR #201) independent.

Limitations: This requires extractable PDF text (or an enhanced/OCR version with the same text available at the linked source). Local file:// links are only usable where the path exists. Duplicate text elsewhere may resolve ambiguously in native viewers; the included PDF page hint improves placement. Browser cross-compatibility beyond Chromium is not guaranteed.

Verification

• Verified the commit's tree differs from main, that all six intended paths match their proposed blobs, and that the branch is one commit ahead and zero behind.
• Added tests/text-fragment-link.test.mjs and registered it in npm test for URL generation, parsing, normalization, percent encoding, input rejection and local file paths.
• Not run locally: Node tests, extension build, and interactive Chrome/Brave smoke testing; the GitHub connector cannot execute the repository in this environment. CI/browser checks remain necessary.

Manual test

1. Highlight a phrase inside a text-backed PDF. Open More PDF tools → Copy link to highlighted text and paste the result.
2. Open the copied URL in native Chromium PDF viewing and with PDF-magic enabled; check that it navigates to and highlights the selected passage.
3. Repeat with punctuation, wrapped lines, a query-string PDF URL, and a non-first-page selection.
4. Confirm that clicking the command without a valid PDF selection reports the missing selection and does not overwrite the clipboard.