Quick answer
The short version
In Safari, open Merge PDF, choose the documents from the Files picker, then use the visible Move up and Move down buttons to set their order. Merge and download the result, choose Save to Files from the share sheet if prompted, and open the saved copy to verify its pages before sending it.
Merge PDFStep-by-step
A reliable workflow
- 01
Place the source PDFs in an easy-to-find folder in the Files app.
- 02
Open C4Converter Merge PDF in Safari and select the files from Browse.
- 03
Arrange the list with Move up and Move down instead of relying on drag gestures.
- 04
Start the merge and wait for the download action to appear.
- 05
Save the result to Files, then open it and review the page sequence.
Prepare files on a small screen
Short, descriptive filenames help distinguish similar scans in the iOS picker. Move cloud files into a local or synchronised folder before starting if they are still waiting to download.
Keep Safari in the foreground during processing. Switching apps or losing the network can interrupt an upload, especially for larger documents.
Find and verify the download
Depending on iOS and Safari settings, the result may appear behind the Downloads button or open in a preview. Use the share sheet and Save to Files to choose a durable location.
- Open the saved file from Files, not only the browser preview.
- Check page transitions and the final page before attaching it elsewhere.
- Delete redundant local copies only after confirming the combined document is complete.
Before you continue
Limitations
- Menu labels can differ between iOS and Safari versions.
- Large uploads may be interrupted by mobile network changes or background tab suspension.
- The browser tool cannot organise files already stored only inside another app unless that app exposes them to Files.
Questions
Troubleshooting and common questions
Do I need to install an app?
No. The merge flow works in a modern browser, although the Files app is used to choose and save documents.
Where did Safari save the PDF?
Check the Safari Downloads list and the Downloads folder configured in Settings, then use Save to Files if the result opened as a preview.