# PDF Usage Tracking ID Reader

Extract embedded tracking ID and page serial values from tracked PDF files

> Canonical page: https://elysiatools.com/en/tools/pdf-usage-tracking-id-reader

- **Category:** PDF Tools

- **Keywords:** pdf, tracking, reader, watermark, id, serial

## Overview

Read hidden tracking information from PDFs generated by usage tracking tools.

**Detection order:**
- PDF metadata (subject/keywords)
- Hidden page text serial (e.g. `TRACKID-P0001`)

Returns JSON with per-page serial detection and inferred global tracking ID.

This tool is designed to read output from `pdf-usage-tracking-id`.

## Inputs

- **Source PDF File** (file): Upload tracked PDF

## When to use

- Verify the authenticity of distributed PDF documents by checking their embedded tracking IDs.
- Audit document usage by extracting page-level serial numbers to identify specific page leaks.
- Extract metadata-based tracking information from PDFs without needing to manually inspect file properties.

## How it works

- Upload your tracked PDF file to the tool.
- The tool scans the document metadata (subject and keywords) for the primary tracking ID.
- It parses the document content to detect hidden page-specific serial strings (e.g., TRACKID-P0001).
- The tool returns a structured JSON object containing the global tracking ID, individual page serials, and the detection source.

## Use cases

- Auditing document distribution to ensure files are being tracked correctly.
- Identifying the source of leaked documents by matching page-level serials.
- Automating the verification of tracking IDs in large batches of generated reports.

## Frequently asked questions

### What kind of PDFs can this tool read?

This tool is specifically designed to read PDFs generated by the 'pdf-usage-tracking-id' utility.

### Where does the tool look for the tracking ID?

It first checks the PDF metadata (subject and keywords) and then scans the document text for hidden page serial patterns.

### What is the output format?

The tool provides a structured JSON response containing the tracking ID, page serial list, and detection status.

### Can it detect tracking IDs in standard, non-tracked PDFs?

No, it only extracts information from PDFs that have been specifically encoded with tracking metadata or page serials.

### Is my file data stored?

No, files are processed in memory and are not stored or retained after the extraction process is complete.

## Related tools

- [PDF Clean (PDF清理工具)](https://elysiatools.com/en/tools/pdf-clean): Remove metadata, annotations, bookmarks, and form fields from PDF files
- [PDF Extract Selected Pages](https://elysiatools.com/en/tools/pdf-extract-selected-pages): Extract selected pages from one PDF and generate a new PDF
- [PDF Form Data Export](https://elysiatools.com/en/tools/pdf-form-data-export): Read AcroForm field names, types and current values from a PDF and export them to JSON
- [PDF Reading Time & Page Stats](https://elysiatools.com/en/tools/pdf-reading-time-estimator): Estimate reading time from PDF word counts, page pacing, and section-level breakdowns
- [PDF Annotation Export](https://elysiatools.com/en/tools/pdf-annotation-export): Extract existing annotations (highlights, comments, stamps, links, markup) from a PDF into JSON
- [OCR PDF to Structured JSON Bridge](https://elysiatools.com/en/tools/ocr-pdf-to-structured-json-bridge): Extract the PDF text layer with geometry (lines by y-position, tables by column gaps, headings by font size, colon key-value pairs), then fill a user-supplied JSON Schema field by field — labels matched by normalized keys, values coerced to declared types and validated with ajv.
- [PDF Image & Caption Extractor](https://elysiatools.com/en/tools/pdf-image-caption-extractor): Extract images from PDFs, match nearby captions, and generate an HTML index package using OpenDataLoader
- [PDF Table Extractor to CSV/JSON](https://elysiatools.com/en/tools/pdf-table-extractor-to-csv-json): Extract tables from PDFs with OpenDataLoader and export them as structured JSON, flat CSV, or HTML tables

## Samples

- [PDF Samples](https://elysiatools.com/en/samples/pdf-samples): Generated PDF samples from tools dated 2026-02-01 to 2026-02-10
- [Markdown Slide Deck Samples](https://elysiatools.com/en/samples/md-slide-deck-to-pdf): Remark/Marp style Markdown slide decks for testing PDF export layouts
- [Tracking Number Samples](https://elysiatools.com/en/samples/tracking-number): Collection of tracking numbers from major global carriers for validation testing
- [Time Zone Workflow Scheduler ICS Samples](https://elysiatools.com/en/samples/time-zone-workflow-scheduler-ics-samples): ICS files generated in the same structure returned by the Time Zone Workflow Scheduler, with multiple VEVENT meeting candidates exported from overlap windows