Merge PDF Files
Combine several PDFs into one document, in whatever order you like. Pages, text and links are carried over intact, and the merge happens on your device.
How to use Merge PDF
- Add two or more PDF files.
- Reorder them with the arrows, or remove any you added by mistake.
- Check the page counts shown next to each file.
- Merge and download the combined PDF.
About this tool
Merging copies the page objects from each source document into a new one, so the result keeps selectable text, embedded fonts, vector graphics and internal page content exactly as they were. It is not a re-print or a re-render — nothing is flattened into images.
A few things do not survive the copy, because they belong to the document as a whole rather than to individual pages: form fields may lose their interactive behaviour, and bookmarks, attachments and document-level JavaScript from the originals are not carried into the merged file. Page content itself is unaffected.
Encrypted and password-protected PDFs are refused with an explanatory message rather than producing a broken output file. Remove the protection in a PDF reader first if you need to merge one.
Frequently asked questions
Is there a limit on file size or number of files?
No fixed limit, but everything is held in your device’s memory while it works. A few hundred megabytes in total is realistic on a typical laptop; past that a browser tab can run out of memory and reload.
Will the merged file be as large as all the originals added together?
Roughly, yes — usually a little smaller, because shared structure is written once. Merging does not compress anything. Run the result through the PDF compressor if it needs to be smaller.
Can I merge a PDF with a Word document or an image?
Not directly — this tool takes PDFs only. Convert images with the JPG to PDF tool first, or export the Word file to PDF from Word, then merge the resulting PDFs here.
Does merging change page order inside each file?
No. Each document’s pages are appended in their original sequence; you control only the order of the documents themselves.