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Merge PDF Files Online

Combine multiple PDF documents into one perfectly ordered file. Free, fast, and secure โ€” no account needed.

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100% Free
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No sign-up required
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Files deleted in 2h
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Up to 25 files
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Drop your PDF files here
Select or drag & drop multiple PDF files to merge them into one.
Reorder pages after uploading.
Also from:
Maximum 25 files ยท 100MB each ยท PDF files only
๐Ÿ’ก Drag files to reorder them โ€” the merged PDF will follow this sequence.

PDF Files to Merge

3 files selected ยท Drag to reorder

โš™๏ธ Merge Options

Add bookmarks
Include metadata
Compress output
3 files ready to merge
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Merging your PDFs...
This usually takes just a few seconds
Preparing files...
1
Uploading files securely
2
Analyzing PDF structure
3
Merging documents
4
Optimizing output file
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Merge Complete!
Your PDFs have been merged successfully. Download your new file below.
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merged-document.pdf
Merged from 3 files ยท 2.4 MB ยท 18 pages
Save to cloud:
Want to merge more files?

How to Merge PDF Files

Combine your PDFs in three simple steps. No software installation required โ€” everything works directly in your browser.

1
Upload your PDF files

Click "Select PDF Files" or drag and drop your files into the upload area. You can add up to 25 PDFs at once, each up to 100MB.

2
Arrange the order

Drag and drop your files to set the exact order. The merged PDF will follow the sequence you define. You can also remove any unwanted files.

3
Merge & Download

Click "Merge PDF Files" and wait a few seconds. Your combined PDF will be ready to download instantly. Save it locally or to your cloud storage.

Frequently Asked Questions

Is it safe to upload my PDF files to BotPDF? โ–พ
Absolutely. All file transfers use 256-bit SSL encryption. Your files are stored on secure servers and automatically deleted within 2 hours of processing. We never read, share, or analyze the content of your documents.
How many PDF files can I merge at once? โ–พ
The free plan supports merging up to 25 PDF files per operation, with each file up to 100MB. With a BotPDF Premium plan, you can merge unlimited files with no size restrictions.
Will merging reduce the quality of my PDFs? โ–พ
No. Our merge engine preserves the original quality of all pages, including images, fonts, vector graphics, and interactive elements like hyperlinks and form fields. Quality is never compromised.
Can I merge password-protected PDFs? โ–พ
Yes, if you know the password. You'll be prompted to enter it during upload. Alternatively, use our "Unlock PDF" tool first to remove the password, then merge your files.
Does BotPDF work on mobile devices? โ–พ
Yes! BotPDF is fully optimized for mobile browsers on iOS and Android. You can upload files directly from your phone's storage, Google Drive, or Dropbox and merge them on the go.