PDF Editor 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 PDF Editor tool lets you add text, images and annotations directly onto a PDF — free, in your browser, with your files deleted automatically the moment you are done.
Start Using PDF Editor NowWhy Researchers use PDF Editor
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 pdf editor in 3 steps
- Upload the PDF you want to edit.
- Add text, images or notes anywhere on the page.
- Download your edited 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.
PDF Editor — Frequently asked questions
Is PDF Editor 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 PDF Editor for?
PDF Editor 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.
Can I fill in a PDF form?
Yes. Add text on top of any field and download the completed document without printing it.
Do I need to install anything?
No. The editor runs entirely in your browser, free, without Adobe Acrobat or any app.
Can I sign a PDF or add an image?
Yes. Add your signature image, logo or any other image on top of the document, then download the signed copy.
Can I delete or hide existing text in the PDF?
The PDF editor adds text and images on top. To permanently hide or remove sensitive info, use the dedicated PDF Redaction tool.
Can I add text anywhere on the page?
Yes. Type text anywhere on the page and move its position freely before downloading.
Are the edits permanent in the output file?
Yes. On download, all your additions are baked into a final PDF that opens the same way on any device.