Rotate PDF Pages accepts more than one PDF at once (isMultipleInput is true) and merges every page from every uploaded file into a single rotated output.
Adobe explains that once files are combined into one PDF, pages can be reordered, added, deleted, or rotated as needed. Merge PDFs for free - Combine PDF files online
Rotate PDF PagesCombine and Rotate PDF Pages
Upload the separate PDF files to the Rotate PDF Pages form.
Select the rotation angle for each page in the preview grid.
Upload the files in the desired sequence; the page offers no reordering.
Verifying the Merged Output
Keep the merged file once every page rotation finishes.
Open the downloaded file and check the page orientation.
Count the pages in the final document to match the source files.
Continue with Rotate a single PDF page or Fix pages that remain sideways.
Frequently Asked Questions about Combine and Rotate PDF Pages
How do I upload multiple PDF files?
Select several PDF files in the upload area to start the merge process.
Where do I set the rotation for specific pages?
Click the rotation icon on each page thumbnail in the preview grid.
How do I change the order of the pages?
Reload the page and upload the files in the order you need.
Where do I get the final combined file?
Click the download button after the processing completes.