Merge, split, and convert images — everything runs in your browser, no upload required

Drag & drop PDF files here, or click to add

Multiple files supported

PDF Toolkit Guide

Why it's safe

Merging, splitting, and converting all happen locally in your browser — files never leave your device
Works even without a stable connection, as long as you don't refresh the page
File data is cleared from memory automatically once you close the tab
Safe to use with contracts or documents containing personal information

Tips

Check the file order in the list before merging to avoid mixed-up pages
For splitting, combine commas and hyphens like '1-3, 5, 8-10' to specify ranges
Converting scanned document photos to PDF makes them much easier to email
Larger PDFs with more pages will naturally take longer to process

Cake Toolbox & this page

Cake Toolbox is K-K’s free web utilities collection at k-k.page. Where possible, tools run in your browser to reduce unnecessary data transfer; pages that call AI or external APIs explain what is sent. Calculator and converter outputs are for reference only—not legal, tax, financial, or medical advice.

If something looks wrong, email us with the page URL. Many sites offer similar widgets; we aim to add clear context, limitations, and safe-use notes—not just the bare UI.

Is my input stored on your servers?

It varies by tool—read the notice on this page. Many converters and generators run fully client-side.

Can I use this commercially?

You may use it for personal or work reference. Uses that harm site operation (e.g. resale, abusive automation) may be restricted under our Terms.

Where do I report bugs?

Use /contact or ilinyion@gmail.com with the page URL and steps to reproduce.

What is Cake Toolbox?

It is the product name for K-K’s utilities hub. See /tools/why-cake-toolbox for how we think about editorial quality and trust.

Does it work on mobile?

Yes, layouts are responsive. For heavy text or code tools, a larger screen may be more comfortable.