Free PDF Merger – Combine PDFs Online
Join multiple PDF files into a single document instantly.
ToolCraftr is a free PDF merger that allows you to combine multiple PDF documents into one. Our online PDF combiner lets you reorder files easily and merges them locally for maximum privacy. Ideal for combining reports, invoices, or chapters into a single file.
Why merge PDFs?
Keep Documents Organized – Combine related files into a single master document.
Share Easier – Send one file instead of multiple attachments.
Create Portfolios – Merge various work samples into a professional portfolio.
Prepare for Printing – Combine files to ensure correct printing order.
Key Features
Easy Reordering
Drag and drop or use arrow buttons to arrange your PDFs in the perfect order.
Instant Merging
Merging happens immediately in your browser. No upload or download wait times.
100% Private
Files are processed locally. Your sensitive documents never leave your device.
Preserve Content
Keeps original formatting, links, and quality of all merged pages.
Batch Processing
Select and upload multiple PDF files at once.
Free Download
Download your merged PDF immediately without watermarks.
How PDF merging works
PDF merging involves taking the page trees of multiple PDF documents and appending them into a new document structure.
Our tool reads the binary data of each file, extracts the pages, and rebuilds the cross-reference table to ensure all links and resources work correctly in the new combined file.
Common Questions
Is there a limit to how many files I can merge?
Currently, there is no strict limit on the number of files you can merge. However, browser memory limits may affect performance when merging a very large number of files (e.g., 50+ large PDFs).
Can I reorder the files?
Yes! You can reorder your uploaded files using the up/down arrows or simply by dragging and dropping them into your preferred sequence before merging.
Are my files private?
Absolutely. The merging process runs strictly in your browser. Your files are not uploaded to any remote server, ensuring your data remains private and secure.
Does it preserve my links and forms?
In most cases, yes. The tool appends the pages of each PDF together, preserving the original content, links, and form fields of each page.