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PDF Merge, Compress & Split

Utilities

Merge, compress, and split PDF files in the browser.

Drop PDF files here or click to upload

Accepts: .pdf, application/pdf · Max 100 MB per file

How to Use PDF Tools

Choose Your Operation

Select Merge to combine multiple PDFs, Compress to reduce file size, or Split to extract specific pages or divide a document into parts.

Upload & Configure

Drag and drop your PDF files into the upload zone. For merging, reorder files by dragging. For splitting, enter page ranges. For compression, pick a preset level.

Process & Download

Click the action button and wait a few seconds. Download your result as a single PDF or a ZIP archive containing multiple files.

Features

Merge Multiple PDFs

Combine any number of PDF files into a single document. Drag to reorder, move files up/down, and preview page counts before merging.

Smart Compression

Three compression presets — Light, Medium, and Heavy — let you balance file size reduction against quality. Removes metadata and re-encodes embedded images.

Flexible Page Splitting

Extract specific pages by number or range, split every N pages, or create individual single-page PDFs. Multiple outputs download as a ZIP.

Page Thumbnails

Preview the first and last pages of uploaded PDFs as thumbnails rendered via the HTML Canvas API, so you always know what you're working with.

Drag & Drop Reordering

Reorder PDF files before merging with intuitive drag-and-drop. Accessibility-friendly move up/down buttons are also provided.

100% Client-Side

All processing happens in your browser using the pdf-lib library. Your documents are never uploaded anywhere — complete privacy guaranteed.

Why Use Browser-Based PDF Tools?

Privacy first. Most online PDF tools require uploading your documents to their servers. That's a dealbreaker for contracts, financial statements, medical records, or any sensitive content. Our tools process everything locally in your browser — your files never leave your device.

PDF merging is essential when you need to combine scanned documents, assemble report sections, or bundle invoices. Our merger preserves page dimensions, bookmarks, and internal links while letting you reorder files with drag-and-drop.

Browser-based compression is ideal for quick size reductions — stripping metadata, unused objects, and re-encoding images typically saves 10-30%. For PDFs heavy on scanned images, server-side tools like Ghostscript can achieve deeper compression, but our tool handles the common case without any software installation.

Frequently Asked Questions

How does the PDF merger work?

The merger uses the pdf-lib library running entirely in your browser. It loads each PDF, copies all pages in the order you specify, and combines them into a single document. Your files are never uploaded to a server — everything is processed locally on your device.

Is there a file size limit?

There is no hard limit, but very large PDFs (100 MB+) may slow down your browser since all processing happens client-side. For best results, keep individual files under 50 MB. There are no restrictions on the number of files you can merge.

How effective is the PDF compression?

Browser-based compression removes metadata, unused objects, and can re-encode embedded images at lower quality. Typical savings range from 5-40% depending on PDF content. For maximum compression, server-side tools like Ghostscript are more effective, but our tool works well for quick reductions without uploading sensitive documents.

Can I split a PDF into individual pages?

Yes. The Split tab offers three modes: extract specific pages by number or range (e.g. 1, 3, 5-8), split every N pages into separate files, or split into individual single-page PDFs. Multiple output files are bundled into a ZIP download.

Are my documents safe?

Absolutely. All processing happens inside your browser using JavaScript. No PDF data is ever sent to a server. Close the tab and all data is gone. This makes our tool ideal for confidential or sensitive documents.

What about password-protected PDFs?

The tool attempts to load password-protected PDFs by ignoring encryption, which works for PDFs with owner passwords (editing restrictions). User-password-protected PDFs (that require a password to open) cannot be processed — you will see an error message in that case.

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About PDF Merge, Compress & Split

Merge multiple PDFs into one, split large documents into individual pages, and compress file sizes — all processed locally in your browser for maximum privacy. Rearrange pages with drag-and-drop, set custom page ranges for splitting, and achieve significant compression ratios. No file uploads or server-side processing required.

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