Merge PDF
Combine multiple PDFs into one, in the order you choose.
1 · Add PDFs
Use the Up/Down buttons to reorder files - order determines the merged page order. Up to 30 files, 50MB each.
Files are processed in memory on the server (real page-level PDF merging needs a PDF library this site does not have client-side) and never written to disk or retained after the response - nothing is logged.
What this does
Add up to 30 PDFs, reorder them with Up/Down controls, and merge them into a single output PDF with the page order following your file order.
How it works
Processed on the server using Syncfusion.Pdf.Net.Core, an already-licensed PDF library in this project - real page-level merging needs an actual PDF object model, which is not available client-side here. Files exist only in memory for the duration of the request; nothing is written to disk, retained afterward, or logged.
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