Are my confidential documents sent to a server?

No, they are never uploaded. We respect your security. All file reading, merging, splitting, and rendering happens locally inside your browser runtime.

How many PDF files can I merge at a time?

There are no hardcoded limits on our end, but it physically depends on your computer's available RAM. Handling dozens of large PDFs may cause browser slowdowns.

How do I change the specific order of my merged PDFs?

After browsing or dragging your files into the merger area, you can click and drag the file bars up and down to visually re-arrange their final compilation order.

Can I extract multiple non-sequential pages?

Yes. In the Split tab, simply enter numbers separated by commas (e.g., "2, 4, 7-9"). The new PDF will contain precisely those extracted pages.

Do you support editing password-protected PDFs?

Currently, the web application cannot open or merge PDFs encrypted with owner or user passwords. Please use unlocked files.

Will merging decrease the quality of my images?

No. The underlying engine manipulates the PDF structure directly by copying entire page objects without re-compressing them, preserving 100% of your original quality.

Can I do this easily from my iPhone?

Yes. The interface is completely mobile-responsive and integrates directly with iOS Files and Android storage systems.

📑

pdf merge split,

PDF Merge & Split

A free online tool that allows you to combine multiple PDFs, extract specific pages, and split pages one by one.
It is safe because it is completely processed by the browser and does not load to the server.

🔒️

Full browser processing

No server submissions

📱️

Auto Erase

No data remains

Merge multiple PDFs or extract specific pages. All processing in your browser.

📂

Drag & drop PDF
or click to select

Multiple files / Max 100MB each

🛡️

In-Browser Processing

Files are never sent to any server

📄

Preserves text and images

Maintains original PDF quality

🗑️

Auto-Delete

Data is permanently deleted on page close

about,

About

This is an online tool that allows you to combine multiple PDF files into one, split one PDF into multiple files, and extract specific pages.

All file processing is completed within the browser and the PDF is never uploaded to the server. You can use it with confidence even for internal documents containing confidential information.

how to,

How to Use

STEP 1

Select mode and file

Switch "Combine/Extract/Split" on the tab at the top and drop the PDF file onto the dotted line area.

STEP 2

Adjust settings

When merging, drag the list to change the order. When extracting/splitting, specify the page range, etc.

STEP 3

Save

Press the processing button to instantly process it in your browser and save the completed PDF.

glossary,

Glossary

PDF (Portable Document Format): A universal file format developed by Adobe to present documents (including text, formatted layouts, and images) independent of software, hardware, and OS.
PDF Merge: The process of combining two or more separate PDF documents together sequentially to create a single, unified PDF file.
PDF Split (Extraction): The operation of separating a multi-page PDF into smaller ones, or extracting a specific range of pages to create a streamlined, new document.
pdf-lib: A robust open-source library that powers our tool, allowing intricate PDF modifications directly within your browser without external servers.
Drag and Drop UI: A user interface mechanism allowing you to easily select local files and pull them visually into the designated browser area for processing.
Client-side Processing: A privacy-first architectural choice meaning your private documents are kept strictly locally in your machine’s RAM during manipulation.
Page Range Syntax: A universal shorthand allowing you to specify complex extraction requirements (e.g., "1-3, 5, 8-10") when splitting documents.

faq,

FAQ

Q.Are my confidential documents sent to a server?: No, they are never uploaded. We respect your security. All file reading, merging, splitting, and rendering happens locally inside your browser runtime.
Q.How many PDF files can I merge at a time?: There are no hardcoded limits on our end, but it physically depends on your computer's available RAM. Handling dozens of large PDFs may cause browser slowdowns.
Q.How do I change the specific order of my merged PDFs?: After browsing or dragging your files into the merger area, you can click and drag the file bars up and down to visually re-arrange their final compilation order.
Q.Can I extract multiple non-sequential pages?: Yes. In the Split tab, simply enter numbers separated by commas (e.g., "2, 4, 7-9"). The new PDF will contain precisely those extracted pages.
Q.Do you support editing password-protected PDFs?: Currently, the web application cannot open or merge PDFs encrypted with owner or user passwords. Please use unlocked files.
Q.Will merging decrease the quality of my images?: No. The underlying engine manipulates the PDF structure directly by copying entire page objects without re-compressing them, preserving 100% of your original quality.
Q.Can I do this easily from my iPhone?: Yes. The interface is completely mobile-responsive and integrates directly with iOS Files and Android storage systems.

use cases,

Use Cases

📑

Merge Business Documents

Combine estimates, invoices, and contracts into a single PDF for clients or internal use.

✂️

Extract Specific Pages

Pull out only the pages you need from large PDFs and share lightweight files.

🏫

Reorganize Study Materials

Select chapters from multiple PDFs to create custom study compilations.

📤

Email Attachment Optimization

Split large PDFs to fit within email attachment size limits.

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