How to Use the PDF Merge & Split Tool

Select the "Merge PDFs" or "Split PDF" tab depending on your task.
To Merge: Drop or select multiple PDF files. They appear in a list that you can reorder. Click "Merge & Download" to combine them into one PDF.
To Split: Drop or select a single PDF file. Choose to split all pages individually or extract a specific page range. Click "Split & Download".

Technical Overview & Use Cases

This tool uses PDF-lib for PDF manipulation and PDF.js for reading page counts. All operations (merging, page copying, splitting) are performed entirely in memory within your browser.

Real-world use cases:

Combining multiple invoices or reports into a single document.
Extracting specific pages from a large PDF for sharing.
Splitting scanned documents into individual page files.
Reorganizing PDF content without expensive desktop software.

Privacy & Security Guarantee

This tool is part of the FAK LAB ecosystem, founded by Faizan Ahmad Khan Khichi. PDF processing is performed 100% client-side. No data is ever stored or shared.

Frequently Asked Questions

Is there a limit on how many PDFs I can merge?

No hard limit. However, very large PDFs (100+ MB total) may be slow depending on your device's memory.

Does splitting preserve the original PDF quality?

Yes. Pages are copied without re-encoding, so quality, fonts, and vector graphics are preserved exactly.

Can I merge password-protected PDFs?

No. Password-protected (encrypted) PDFs must be unlocked before they can be merged or split.