Add Page Labels
Apply custom page labels to your PDF catalog. Supports Roman numerals, prefixes, and complex disjoint ranges.
点击或拖拽上传 PDF
About This Tool
Add Page Labels allows you to inject custom page labeling metadata (/PageLabels) into your PDF's root Catalog dictionary. This customizes the labels displayed in professional PDF reader navigation sidebars and top page number jump panels (e.g. using Roman numerals for front matter, decimal sequences for main body, or custom prefixes such as A-0, A-1 for technical subsections).
Supports combining multiple custom rules seamlessly. Crucially, we've built a highly optimized disjoint-range slicing algorithm: even if you declare complex alternating patterns (e.g., odd pages style A, even pages style B), the tool will elegantly dissect and compose boundaries to ensure proper standard-compliant display without leaking formats into unmapped pages.
All operations are processed entirely inside your local browser sandbox, securing absolute data privacy.
How to Use
Upload PDF Document
Provide the target PDF document you wish to label.
Configure Labeling Rules
Add one or more rules specifying page ranges (e.g., "1-5", "odd", or comma-separated lists), prefix, style, and starting sequence.
Preview and Download
Review the live page label list preview below, then compile and download your updated PDF document.
Use Cases
Academic Thesis Formatting
Set lowercase Roman numerals (i, ii, iii) for introductory front matter and transition to decimal for main chapters.
Engineering Blueprint Prefixes
Attach subsystem abbreviations (e.g., "A-1", "M-5") as page label prefixes, letting teams search and locate pages in seconds.
Custom Alternating Layouts
Apply highly specific page range indexing to odd/even sequences or non-contiguous sections with maximum freedom.
Frequently Asked Questions
What are page labels vs page numbers?
Ordinary page numbers are visual text blocks rendered directly on the paper canvas (visible when printed). Page labels, however, are structural metadata injected into the PDF catalog. They control what is displayed underneath thumbnails and in the page lookup box inside software like Adobe Acrobat or Apple Preview.
What happens if I leave the Page Range empty?
Leaving the page range empty causes the rule to apply globally to all pages of the document.
How are overlapping rules handled?
Rules are evaluated sequentially in the order they are listed. If a page range of a later rule overlaps with an earlier one, the later rule takes priority and overrides the label for that page.