Merge PDF for Researchers
The journal portal caps submissions at 20 MB and your figure-rich manuscript is 45. If you work as one of the researchers, you have been there. Confileo's Merge PDF tool combines several PDF files into one ordered document in seconds — free, in your browser, with your files deleted automatically the moment you are done.
Start Using Merge PDF NowWhy Researchers use Merge PDF
Day to day, researchers handle journal papers, datasets, grant proposals, survey results, literature reviews and conference posters — exactly the kind of files this tool is built for.
- Merging dozens of source papers into one annotated literature-review PDF.
- Compressing a figure-heavy manuscript to meet a journal submission limit.
- Extracting tables from PDFs into a spreadsheet for re-analysis.
- Redacting participant data before sharing a dataset publicly.
How to merge pdf in 3 steps
- 1Upload or drag in every PDF you want to combine.
- 2Drag the files into the exact order you need.
- 3Click Merge and download the single combined PDF.
Built for the way researchers work
- ✓Accurate table extraction saves hours of manual data re-entry.
- ✓Participant data is processed then deleted for ethics compliance.
- ✓Free for grad students and labs on a tight grant.
Merge PDF — Frequently asked questions
Is Merge PDF free for researchers?
Yes. Accurate table extraction saves hours of manual data re-entry. There is no signup, no trial and no watermark on your files.
What kind of files can researchers use Merge PDF for?
Merge PDF works with the documents researchers handle every day — journal papers, datasets, grant proposals, survey results, literature reviews and conference posters. A common case: Merging dozens of source papers into one annotated literature-review PDF.
Is there a limit to how many PDFs I can merge?
You can merge many files in a single batch (up to 100 MB total). Everything is processed in your session and then deleted automatically.
Will merging change the quality of my pages?
No. Pages are combined exactly as they are, with no re-compression or quality loss.
Can I reorder the files before merging?
Yes. After uploading, drag the files up or down to set the exact order, and the combined PDF follows it.
Can I merge images or Word documents with PDFs?
The merge tool combines PDF files. To include images or Word docs, convert them to PDF first with the Images to PDF or Word to PDF tool, then merge the results.
Do I need software like Adobe Acrobat to merge PDFs?
No. Merging happens entirely in your browser for free, with nothing to install on your device.
Does merging keep each file's page order?
Yes. Each file’s pages stay in their original order; only the files are joined in the sequence you set.