Need to attach multiple PDF files to one email? Merge them into a single document with FixTools — free, instant, and completely private. Your files never leave your browser.
No watermark added
Compress after merging
Works on any device
PDF Tool
All processing happens in your browser — your files are never uploaded to any server.
🚀Open PDF Merger100% Free · No account · Works on any device
Upload your PDFs, arrange them in order, then merge into one attachment-ready file. After merging, compress the result if the file is too large to email.
Step-by-step guide to merge pdf files for email:
Upload your PDF files
Click "Open PDF Merger" and upload the PDF files you want to combine. You can upload multiple files at once.
Arrange the files in order
Drag and reorder your PDF files so they appear in the sequence you want in the final merged document.
Merge into one PDF
Click "Merge PDF" to combine all uploaded files into a single document.
Compress if needed
If the merged PDF is too large to email (most email clients have a 10–25MB limit), use the PDF Compressor to reduce the file size before sending.
More use-case guides for the same tool:
Open the full PDF Merger — free, no account needed, works on any device.
Open PDF Merger →Free · No account needed · Works on any device