Assignment portals often cap uploads at 5-10 MB and ask for a single merged PDF instead of several files. With GekiPDF's merge tool, you can combine up to 20 PDFs per run, then download one clean file that fits the portal's requirement. No re-encoding means your original pages stay exactly as they were—no quality loss, no surprises.
Drag the files into the order you need, then hit merge. The tool copies pages directly, so mixed page sizes (like A4 and Letter) are kept as-is. Your combined PDF is ready in seconds, with no watermark and no account needed. Files are deleted from our servers after one hour, so your work stays private.
Frequently asked questions
Can I merge more than 20 PDFs at once?
No, each run accepts up to 20 files. If you have more, split them into batches and merge the resulting PDFs together in a second pass.
Will merging change the quality of my pages?
No. The tool copies pages without re-encoding, so text and images remain identical to the originals. Only file size may differ slightly due to container overhead.
How long do my files stay on the server?
Files are automatically deleted after one hour. You can download your merged PDF immediately after processing; there's no storage or waiting period.
Do it in the full tool
Open Merge PDF for all options, or jump straight to another step below.
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