Merge PDF
Combine multiple PDF files into a single document in seconds. Free, secure, and no signup needed.
Drag in two or more PDFs and mydearPDF will merge them into a single, perfectly ordered document. No installs, no accounts, no watermarks. Our merge engine preserves bookmarks, hyperlinks, fonts, and image quality, so the combined PDF looks identical to the originals — just stitched together. Whether you are bundling invoices, combining chapters of a report, or putting together a portfolio, you can merge up to 30 PDFs at once and download the result instantly.
Secure
HTTPS transport. Files removed after processing.
High quality
Resilient open-source engine pipeline.
Fast & easy
Drop, process, download — in seconds.
How to merge pdf with mydearPDF
- 1
Select your PDF files
Click the upload area or drag and drop two or more PDF files into the page. You can add up to 30 files at a time.
- 2
Reorder the files (optional)
Files merge in the order shown. Remove any you added by mistake using the X icon next to each file name.
- 3
Click Merge PDF
Hit the Merge PDF button. mydearPDF processes the files on a secure server and combines them into a single PDF.
- 4
Download the merged PDF
When processing finishes, click Download to save the merged file (named mydearpdf-merge.pdf) to your device.
Built for speed, privacy, and zero friction
- Merge up to 30 PDFs in a single operation
- Preserves bookmarks, links, fonts, and image quality
- Free forever with no watermark and no signup
- Files are deleted from our servers right after processing
- Works on any device — Windows, Mac, Linux, iPhone, Android
Frequently asked questions
Is it safe to merge PDFs online with mydearPDF?
Yes. Files are uploaded over HTTPS, processed in isolated memory, and removed from our temporary storage immediately after the merged PDF is sent back to you. We never store, share, or analyse your files.
How many PDF files can I merge at once?
You can merge up to 30 PDF files in a single operation, with a maximum size of 100 MB per file. If you need to combine more, merge in batches and then merge the batches together.
Will merging PDFs reduce the quality of my document?
No. mydearPDF performs a structural merge that copies pages, fonts, and images byte-for-byte. The merged PDF has the exact same visual quality as the originals.
Do I need to sign up or pay to merge PDFs?
No. mydearPDF is completely free, with no account or subscription required. There is no watermark, no daily limit, and no premium tier needed for basic merging.
How is mydearPDF different from iLovePDF or Smallpdf?
mydearPDF is a free, ad-light alternative that focuses on speed and a clean experience. There are no popups, no forced signups, and no daily processing limits. Files are processed and deleted automatically without manual intervention.
Can I merge password-protected PDFs?
Not directly. If a PDF is password-protected, unlock it first with our Unlock PDF tool, then merge the unlocked file with the rest.
Merging PDFs is one of the most common document-management tasks people run into, and yet most online tools either limit how many files you can combine, slap a watermark on the output, or push you toward a paid signup. mydearPDF takes a different stance: free unlimited merges, no watermark, no account, and a merge engine tuned to keep your bookmarks, links, and embedded fonts intact. Drag your files in, click Merge PDF, and download a single combined document in seconds — even on slow connections, because we stream the upload and process on a server with multi-engine fallback to handle even unusual or partially corrupt PDFs.