Free Online Simple PDF Page Counter — Count PDF Pages Instantly
Accurately count the total number of pages inside any PDF document. Upload single or multiple PDF files and get guaranteed correct page counts in seconds. Uses Mozilla pdf.js engine for 100% accuracy. Completely free, private, and works in your browser.
Upload and Count PDF Pages
| # | File Name | File Size | Pages |
|---|
How to Use the PDF Page Counter
Upload Your PDF Files
Click the upload area or drag and drop one or more PDF files into the upload zone on the page.
Click Count Pages Button
Press the Count Pages button to start processing all uploaded PDF files instantly in your browser.
Review Detailed Results
Check the results table showing each file name, file size, and exact page count with totals.
Copy or Download Results
Click Copy Results to copy to clipboard or Download CSV to save results as a spreadsheet file.
Clear and Count Again
Click Clear All to remove files and results, then upload new PDF files to count pages again.
Key Features of Our PDF Page Counter
100% Free Forever
No subscriptions, no hidden fees, no premium tier. Count PDF pages unlimited times at absolutely zero cost to you.
Guaranteed Accurate
Powered by Mozilla pdf.js engine — the same technology Firefox uses. Gets exact page count every single time, guaranteed.
Lightning Fast Speed
Get page counts in seconds even for large PDFs. Optimized processing handles 100+ page documents effortlessly.
Complete Privacy
Files never leave your device. Zero server uploads, zero tracking, zero data collection. Your documents remain fully private.
Mobile Friendly
Works perfectly on smartphones, tablets, and desktops. Responsive design adapts automatically to any screen size.
No Signup Required
Start counting pages immediately. No registration, no login, no email needed. Just open the page and use it right away.
How PDF Page Counting Works
PDF File → pdf.js Engine → Parse Document → Read numPages → Display Accurate CountTechnical Process Steps
- File Reading: The browser FileReader API reads the PDF file as an ArrayBuffer (raw binary data) directly from your device without any network transfer or server involvement.
- pdf.js Initialization: Mozilla pdf.js library receives the binary data and initializes a full PDF document parser, the same engine that powers Firefox built-in PDF viewer.
- Document Parsing: pdf.js parses the complete PDF structure including cross-reference tables, object streams, compressed data, page trees, and all internal dictionaries accurately.
- Page Count Extraction: The parsed document object exposes a numPages property which contains the guaranteed accurate total page count, read directly from the fully parsed page tree.
- Result Display: The accurate page count is displayed in the results table along with file name, file size, and aggregate statistics for all processed files.
This approach is fundamentally different from simple regex-based parsers that try to find text patterns in PDF binary data. Regex parsers frequently fail on compressed PDFs, modern PDF 2.0 files, and large documents. Mozilla pdf.js fully decodes and parses the PDF structure, which is why it works accurately on every valid PDF — from a simple 1-page letter to a 500-page textbook. For example, when Priya from Mumbai uploads her 135-page research thesis, pdf.js parses the complete document structure and returns exactly 135 pages every time.
Real-World PDF Page Counting Examples
📚 Student Thesis Verification
Scenario: Rahul from Delhi needs to verify his PhD thesis has exactly 135 pages as required by university guidelines before final submission.
Input: PhD_Thesis_Final_2024.pdf (8.2 MB)
Result: ✅ 135 pages detected accurately
Use Case: Confirms exact page count matches requirement, avoiding rejection at the submission desk.
🖨️ Print Shop Cost Calculation
Scenario: A print shop in Bangalore receives 20 PDF files from a customer for spiral binding at ₹2.50 per page.
Input: 20 assorted PDF files uploaded at once
Result: Total 487 pages across 20 files
Use Case: Instant quote: 487 × ₹2.50 = ₹1,217.50 total. Calculated in 5 seconds instead of 20 minutes.
📋 Legal Case Document Count
Scenario: Advocate Sharma from Pune needs total pages across 12 court filing documents to calculate page-wise filing fees.
Input: 12 legal PDF case documents
Result: 234 total pages, avg 19.5 pages per file
Use Case: Accurately calculates court filing fees based on certified page count for the registrar.
🏢 Company Report Audit
Scenario: Meena from Chennai must verify all 12 monthly reports have the required 30 pages each before the annual review.
Input: 12 monthly financial report PDFs
Result: 11 files = 30 pages, 1 file = 22 pages (flagged)
Use Case: Quickly identifies the incomplete October report needing 8 more pages before the board meeting.
What is the Simple PDF Page Counter?
The Simple PDF Page Counter is a free online utility tool that accurately counts the number of pages inside any PDF document. Unlike basic tools that use unreliable text-pattern matching, this tool is powered by Mozilla pdf.js — the same open-source PDF rendering engine used by the Firefox web browser. This means every page count you get is guaranteed to be accurate, whether your PDF has 1 page or 500 pages, whether it contains text, images, scanned documents, or complex mixed content.
Built specifically for Indian users including students, teachers, print shop owners, legal professionals, chartered accountants, and office administrators, this tool addresses the daily need for quick and reliable PDF page counting. Common use cases include verifying assignment page requirements before university submission, calculating printing costs at photocopy shops, determining court filing fees based on page count, and auditing corporate document completeness across departments.
The tool processes all files entirely within your web browser. Your PDF documents are never uploaded to any server, making it completely safe for confidential documents like legal filings, financial statements, medical records, and personal documents. It supports batch processing of multiple files simultaneously, provides detailed per-file results in a clean table, and lets you export results via clipboard copy or CSV download. Whether you are using a desktop computer in your office or a mobile phone on the go, this responsive tool works seamlessly on every device and screen size without requiring any software installation.