Create source locators that survive a PDF-to-HTML switch
A reliable source locator combines document identity with a location inside it. Use a section heading, a short search phrase, and a format-specific page or clause reference where helpful. A bare “page 12” is fragile when readers use another format, edition, or viewer.
The SEC exhibit guide helps navigate document relationships. Library of Congress format resources provide background on format usability. The locator card below is a practical research convention rather than a formal citation standard.
Anchor the document before the passage
Record issuer, title or form, period, publication date, version, language, and source reference. Without this identity, a precise-looking page number may point to the wrong report. Then add the internal locator. A heading and phrase work well for searchable text; a visual page and nearby label help with scanned material.
Distinguish printed page numbers from viewer page positions. A PDF can have unnumbered cover pages, so the printed page and viewer position may differ. Store both when the distinction matters. For HTML, avoid inventing page numbers; use headings, table names, or anchors that actually exist.
Hypothetical locator card
Assume fictional Sandbar Chemicals has a report available as PDF and HTML. The example is illustrative.
| Locator field | Example method |
|---|---|
| Document identity | Specific report period and version |
| Section | Supplier arrangements |
| Search phrase | Short distinctive original-language phrase |
| PDF location | Printed page plus viewer position if different |
| HTML location | Heading and table or anchor |
| Context | Preceding qualification and relevant footnote |
The card does not need a long quotation. A short phrase should distinguish the passage without copying unnecessary material. If the phrase appears repeatedly, add a subheading or table label. The goal is to reduce ambiguity, not maximize the amount of text in the note.
Adapt to scans and changing links
For a scanned page, inspect the image and record a visual landmark such as the table title and position. If OCR is used, check the phrase against the image before relying on it. OCR can lose a negative word or alter a date while producing fluent text.
If a direct link fails, use the saved filing or publication record to navigate back to the document. The identity fields should make this possible. A local copy can support retrieval, but retain the official origin and access history. Do not present an untraceable local filename as a complete public citation.
Verify with a cold lookup
Give the locator to someone who has not seen the source. Ask them to find the passage in the format available to them. If they locate a different occurrence of the phrase or cannot identify the version, add the missing field. For solo work, close the document and repeat the lookup later without using your browser history.
Then inspect the surrounding context. A locator that finds the sentence but omits the qualifying footnote is incomplete for a claim depending on that footnote. Include the dependent location so readers do not stop at a misleading fragment.
Limits and common mistakes
A locator proves where to inspect; it does not prove the statement true or make every format identical. Conversions can omit images or change layout. If the question depends on the omitted content, use a suitable original format and state the limit.
Common mistakes include citing only a search result, using an index page as though it contained the passage, and copying viewer page numbers without format labels. Another is saving a translated phrase that cannot be found in the original. Keep original-language search text even when the research note is written in another language.
A final record check
Keep a fallback route beside fragile anchors. A section heading and short original-language phrase can remain useful when an HTML anchor changes, while the filing identity can recover a moved file. The fallback should be tested on the same version. A locator that works only on a later corrected copy does not establish that the earlier passage was recovered.
FAQ
Is the direct URL enough?
It identifies a file, but not necessarily the passage or version context. Add a heading and concise internal locator for important claims.
What if the same phrase appears many times?
Add the section, table, clause, or nearby distinctive wording. A useful locator should select the intended occurrence rather than merely return a search match.