Guide · Merge PDF
Combine a month's invoices into a single PDF
Sending your accountant twenty separate attachments every month is error-prone. One PDF per month is easier to send, check and archive. PDFly merges up to 50 files of up to 100 MB each in one go, directly in your browser.
Steps
- 1
Gather the month's invoice PDFs in one folder. Naming them by date (2026-05-03-supplier.pdf) makes ordering easier.
- 2
Drop them all into PDFly's Merge PDF tool. Files you drop later are added to the end of the list.
- 3
Use the up and down arrows to put the invoices in date order, and remove with the cross any file that slipped in by mistake.
- 4
Click Run, then Download result. Give the file a clear name, for example Invoices-2026-05.pdf.
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