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Open Adobe Acrobat.
Go to File > Combine Files.
Click Add Files and select the PDF files you want to merge.
Arrange the files in your desired order by dragging and dropping them within the list.
Click Combine to merge the selected files into a single PDF document.
Save the new combined PDF to your preferred location.
You can preview and reorder files before combining to ensure the final PDF is in the correct sequence.
This runs in the Acrobat app - there is no separate API for this task.
The 'Combine PDF' operation is an automated way to merge multiple files into a single PDF document using code. It lets developers build applications that can combine up to 20 files, and even choose specific page ranges from each source file, making it very flexible for automated workflows.
No, if your original files already had page numbers, they will likely restart with each new file in the combined PDF. For continuous page numbers across the entire document, you will need to add new page numbers after you have combined all the files. This ensures a smooth page sequence from beginning to end.
Combining files rarely makes the PDF smaller because it brings all the original data together. It doesn't remove anything. If you want a smaller file size, you should combine your files first. Then, use a 'compress PDF' tool. This tool will reduce the file size after all the documents are merged.
In Adobe Acrobat, 'merging files' and 'combining files' mean the same thing. Both terms refer to the process of taking multiple separate documents, like Word files, Excel sheets, or other PDFs, and putting them together into one single PDF document. The feature is called 'Combine Files'.