Fileso’s Merge PDF tool combines several PDF files into one document on iPhone or iPad. It is useful for a report with appendices, a set of receipts, or a submission that accepts only one attachment.
Prepare the input PDFs
Collect local copies of the files and give them names that make their roles clear. Check that each document opens correctly before merging. If a source is password-protected, unlock it with its password before using a workflow that requires an unlocked PDF.
Write down the intended order: cover, main document, supporting material. A filename sort is convenient, but it should not replace checking which file belongs first.
Combine the files in Fileso
- Open Tools → Merge PDF.
- Add the PDF files you want to combine.
- Arrange the input list in reading order.
- Run Create PDF and wait for the result.
- Open the merged document and inspect each boundary between source files.
- Save or share the final output with a distinct filename.
The important boundary check is the last page of one input followed by the first page of the next. This catches reversed attachments and duplicate cover sheets quickly.
Check page count and features
Add up the source page counts and compare the total with the merged PDF. If a file was omitted or could not be processed, do not submit the result just because it opens.
Review form fields, links, bookmarks, annotations, and any signatures that matter to your workflow. Combining documents can affect features beyond visible page content, so verify the actual output rather than assuming every interactive property survives unchanged.
A merged PDF can contain mixed page sizes and orientations. That may be appropriate for an appendix, but inspect how it reads and prints before sending it.
Merging does not guarantee a smaller file
Combining several PDFs usually adds their content together. If an upload limit is the real problem, check the final size and consider a separate compression step on a copy. A ZIP is not a replacement when the recipient explicitly requires a PDF.
When the order needs further adjustment, use Manage Pages on the merged result. Add final page numbers only after the sequence and unwanted pages have been settled.
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