Convert Multiple HTML Pages into a Single PDF in Parallel Convert several HTML documents to PDF at the same time with the asynchronous conversion methods of the HTML to PDF converter and merge the results into a single PDF document, with a header and a footer whose page numbers are those of the merged document. First HTML Page URL Second HTML Page URL Asynchronous Conversion Options Enable asynchronous parallel conversion Header and Footer of the Merged Document Header HTML <div style="font-family: Verdana, sans-serif; font-size: 14px; color: navy; padding: 10px 20px; border-bottom: 1px solid navy">Converted in parallel, merged into one document</div> Footer HTML <div style="font-family: Verdana, sans-serif; font-size: 14px; text-align: center; padding: 10px">Page {page_number} of {total_pages}</div> HTML Viewer Options Width: px Height: px Zoom: % PDF Document Options Layout: FitBrowserWindowToPage LayoutAtPageWidth PageWidthFromBrowserWindow Size: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 B0 B1 B2 B3 B4 B5 ArchA ArchB ArchC ArchD ArchE Flsa HalfLetter Ledger Legal Letter Letter11x17 Note Orientation: Portrait Landscape Margins: Left: pt Right: pt Top: pt Bottom: pt Auto Create Outline Navigation Options Timeout: sec Delay Conversion : sec PDF Security Options User Password: Owner Password: Print Enabled Fill Form Fields Enabled Edit Content Enabled Edit Annotations Enabled Copy Content Enabled Copy Accessibility Content Enabled Encryption Type: RC4 AES Encryption Key: 40 Bits 128 Bits 256 Bits Convert HTML to PDF