Why use Merge PDF?
Students, lawyers, accountants, and operations teams merge PDFs every day to turn scattered exports into one clean submission. Whether you are bundling lecture notes, assembling closing binders, or combining invoices for finance, a dependable merge workflow saves time and avoids wrong page order. PDFBaba lets you upload multiple PDFs, preview and reorder pages in an advanced viewer when you need precision, or run a straightforward server merge when you simply want files concatenated in list order. You do not need an account, and we do not watermark your downloads. Files are removed automatically after about one hour, which reduces long-term exposure for confidential material. Use merge together with Organize PDF or Extract pages when you need to trim or reshuffle before joining everything into a single document.
Supported files & limits
This tool accepts standard PDF files. The default upload limit is 100MB per file; administrators can raise or lower this via server configuration. You can merge multiple PDFs in one session; combine as many as practical within the limit. Output is a single PDF without a PDFBaba watermark.
Privacy & data retention
PDFBaba is built for quick tasks: your uploads and generated downloads are kept only long enough to process your request and are automatically deleted after about one hour. We do not require signup for these tools, and we do not use your documents to train AI models. For full details on cookies, analytics, and legal terms, read our Privacy Policy.
Features
How to use
- 1
Upload at least two PDF files in the order you want to combine them.
- 2
Review file order and submit the merge request.
- 3
Wait for processing to finish and download the merged PDF.
Related tools
Frequently Asked Questions
Is Merge PDF free?
Yes. PDFBaba offers merge functionality completely free with no signup required.
How many files can I merge?
You can merge multiple files in one run as long as each file stays under the configured upload limit.
How long are uploaded files stored?
All files are automatically deleted after one hour.
Do I need an account or signup?
No. PDFBaba does not require signup for these tools. Upload, process, and download without creating an account.
Is there a watermark on the output?
Output from this tool is not watermarked by PDFBaba. You get a clean file suitable for work and sharing.
What is the maximum file upload size?
The default limit is 100MB per file on the server. Your host or administrator can change this via environment configuration. If a file fails to upload, try compressing or splitting it first.
Can I use this tool on my phone or tablet?
Yes. PDFBaba works in modern mobile browsers. Very large files or complex previews may be smoother on a desktop with a stable connection.
Is there a daily usage limit?
To keep the service fast for everyone, rate limits may apply per IP. Typical personal use is rarely affected. If you hit a limit, wait briefly and try again.
What if my PDF is password-protected?
For Merge PDF, use an unlocked PDF when possible. If the file asks for a password in a reader, unlock it with our Unlock PDF tool first, then run Merge PDF on the decrypted file.
Will merging PDFs reduce quality?
Merging combines existing PDF objects; it does not recompress images the way a dedicated compression tool does. Output quality matches your source files unless you choose options that re-encode content.