Insert crisp, customizable page numbers into your PDF headers or footers. Choose custom formats, fonts, Roman or Arabic numerals, duplex facing pages, and cover exclusions — all rendered locally with zero quality loss.
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Supports: PDF documents of any size · Processed 100% locally on your device
Your page numbers have been stamped cleanly and losslessly onto your document.
A fast, private browser utility engineered to add clean, professional headers, footers, pagination, and Bates numbering to any PDF document.
When combining research papers, preparing legal exhibits, compiling company financial statements, or publishing eBooks, documents often lack uniform pagination. A dedicated PDF page numbering tool stamps sequential numbers, folio headers, or page count ratios (e.g., "Page 1 of 45") onto every sheet with millimeter accuracy.
Unlike conventional online utilities that require uploading your confidential files to external cloud servers, PDFMaster executes 100% locally in your browser sandbox. Powered by high-performance WebAssembly engines (pdf-lib and PDF.js), your sensitive agreements, student theses, and medical records never leave your device.
With support for facing pages (duplex mode for double-sided printing), cover page skipping, custom text templates, Roman numerals, and background badges for dark scans, pagination is effortless and flawless.
Advanced browser-native PDF manipulation delivers pixel-accurate numbering without rasterizing pages or uploading files.
Position numbers precisely in any corner or center of your header or footer. Adjust margins from edges with real-time live preview.
Automatically alternates page numbers between outside right (odd pages) and outside left (even pages) for double-sided booklets and books.
Processes massive documents (>100MB, 500+ pages) smoothly. Virtualized viewport rendering and recycled canvas pools prevent browser tab memory crashes.
IndexedDB local storage safeguards your document and numbering preferences. Restore your entire active workspace with a single click if interrupted.
Easily exclude title sheets, blank appendix pages, or front matter. Click any page card to toggle pagination on or off individually.
Zero server uploads, zero accounts, and zero tracking. Your sensitive contracts, statements, and IDs never leave your computer or smartphone.
Add pagination to any document in four easy steps with instant visual feedback.
Drag and drop your file into the upload box or click "Choose PDF File". The document loads into memory without uploading to any server.
Click a spot in the 3x3 position selector. Choose your desired format (e.g. "Page 1 of N"), numeral style, font size, and starting number.
Browse through pages using the previous/next buttons to check exact stamp placement. Toggle page inclusion or use scope controls to skip cover pages.
Click "Add Page Numbers to PDF". The tool stamps clean vector text losslessly and provides your finalized document for instant download.
From legal discovery to academic publications, accurate pagination is essential across every industry.
Attorneys, paralegals, and court clerks use sequential numbering to index evidentiary exhibits, discovery disclosures, and trial binders with tamper-evident precision.
Graduate students and researchers easily conform to university formatting rules by excluding title and copyright pages while numbering body chapters seamlessly.
Financial analysts and enterprise teams paginate annual reports, proposals, and client deliverables with custom headers and logos prior to stakeholder presentations.
Independent authors and publishers enable Facing Pages mode to ensure page numbers rest neatly on the outer margins for commercial double-sided printing.
See how our client-side architecture compares to traditional cloud-based PDF utilities.
| Feature | PDFMaster | Smallpdf / iLovePDF | Adobe Acrobat Online |
|---|---|---|---|
| Data Privacy | ✓ 100% Client-Side | ✕ Uploaded to Server | ✕ Cloud Account Required |
| File Size Limits | ✓ Unlimited | ✕ 15MB - 50MB Cap | ✕ File size caps |
| Facing Pages (Duplex) | ✓ Included Free | ✕ Not supported | ✓ Paid subscription only |
| Cover Page Skip | ✓ 1-Click Toggle | ✕ Complex manual ranges | ✓ Supported |
| Session Recovery (IndexedDB) | ✓ Built-in Local Backup | ✕ Lost on reload | ✕ Requires Cloud Login |
| Pricing | ✓ 100% Free Forever | ✕ Subscription Paywall | ✕ $19.99/month |
Built on streaming range readers, vector font embedding, and recycled GPU canvas buffers.
PDF bytes are streamed via sliced Object URLs rather than holding huge uncompressed ArrayBuffers in memory. This eliminates GC thrashing and supports multi-hundred megabyte documents.
Thumbnail rendering reuses a fixed pool of 3 GPU canvases. As soon as a thumbnail is converted into a lightweight image, the canvas context is deallocated immediately.
Only thumbnails currently visible in your browser window are rendered. Offscreen pages consume near-zero memory until scrolled into view.
Numbers are embedded as native PDF text operators without rasterizing document pages. File size increase is negligible (<10KB) and zoom quality remains pin-sharp.
Everything you need to know about numbering PDF documents online with PDFMaster.