Merge PDF files
Combine two or more PDFs into a single document. Drag the files into the order you want, then merge. Everything happens inside your browser — the documents are never sent to a server, so contracts, invoices and scanned records stay on your device.
Select several at once, or drop them anywhere on this page
Nothing uploaded · nothing stored
How to merge PDF files
- 1
Add your PDFs
Drop the files anywhere on the page, or choose them from your device. You can add more at any point before merging.
- 2
Put them in order
Move files up or down until the order is right. The merged document follows this order from top to bottom.
- 3
Merge and download
Press Merge. The combined PDF is built on your device and saved straight to your downloads folder.
Why use TryToPDF
- Files are processed in your browser and never uploaded
- No page limit and no watermark on the result
- Bookmarks, form fields, annotations and links are carried across and remapped
- Reorder files with controls that work on desktop and on touch screens
Where your file goes
Nowhere. This tool runs inside your browser, and the page is served with a policy that forbids it from sending your document anywhere. You can confirm that yourself: open your browser’s developer tools, watch the Network tab, and process a file.
Questions
- Are my PDF files uploaded to a server?
- No. Merging runs entirely inside your browser using a local processing engine. You can confirm this by opening your browser's developer tools and watching the Network tab while the merge runs — no request is made.
- How many PDFs can I merge at once?
- There is no fixed limit. The practical ceiling is your device's available memory. TryToPDF checks the total size before starting and warns you if the merge is unlikely to complete on your device.
- Does merging keep my bookmarks and form fields?
- Yes. Bookmarks, form fields, annotations and links are preserved from each source document and remapped to their new page positions.
- What happens to a digitally signed PDF?
- Merging rewrites the document, which invalidates any existing digital signature. This is inherent to the PDF format. TryToPDF detects signatures before merging and warns you so you can cancel.
- Can I merge PDFs without an internet connection?
- Yes, once the merge engine has been loaded once. After that it is cached on your device and the tool keeps working offline.
- Can I merge PDFs on my phone?
- Yes. The tool is built for touch as well as a mouse, and merging runs on the phone itself. Very large documents are limited by the phone's memory rather than by us, and TryToPDF checks the total size before starting and warns you if it looks unlikely to finish.
- Will the merged file be as large as all the originals added together?
- Usually slightly smaller. Shared resources such as fonts embedded in more than one document are stored once in the result. If the total is larger than you need, run the merged file through Compress PDF afterwards.
- Can I merge a password-protected PDF?
- Not while it is still protected. TryToPDF detects the password before merging and stops, rather than producing a broken file. Remove the password first using the document's own password, then merge the unlocked copy.
- What order will the pages be in?
- Exactly the order the cards appear in the grid, with each document’s own pages kept in sequence. Drag a card to change where its pages land.