MindraInfo · PDF studio
PDF Editor
Edit text, place content, and save a new copy — right in your browser.
Bring your PDF into the studio
Tap existing text to select it, add new content, or place an image. Your original file remains unchanged.
PDF files up to 40 MB · No account needed
MindraInfo PDF tools
How to edit a PDF online on your phone
Use the PDF editor in your mobile browser to make supported text changes, add text or lines, place photos, and download a separate edited copy. No account is required and there is no payment required to use this tool.
1. Open a PDF
Tap Open PDF and choose a PDF file from your phone. Files over 40 MB are rejected to help prevent browser memory problems.
2. Select and edit text
Tap a recognized text region to open the larger text editor. Type or delete text, then apply your changes and review the page.
3. Add content
Use the editing tools to add a text box, a line, or a JPG/PNG photo. Select added items to move or resize them where supported.
4. Download a new copy
Use Download edited PDF to save a new file to your device. The original PDF is not overwritten. Open the downloaded copy to verify the final result.
How your PDF is processed
In this editor, the selected file is read with browser file APIs and its bytes are passed to PDF.js in the browser. Changes and the downloaded PDF are created with pdf-lib in the browser. This page's editor code does not upload your selected PDF to a MindraInfo endpoint. The PDF.js worker script itself is requested from cdnjs, and the page still makes normal website asset requests. Avoid using a shared device for sensitive documents and close the page when finished.
What to know before editing
PDFs usually store text at fixed positions rather than as flowing Word-style paragraphs. This editor rebuilds recognized text regions and uses standard fonts for replacements, so exact fonts, spacing, wrapping, and colored or complex backgrounds may not be preserved perfectly. Scanned PDFs usually contain page images instead of a text layer; OCR is not included. Always review the downloaded PDF before sharing it.
PDF editor FAQs
Can I use this PDF editor on my phone?
Yes. The interface is designed for mobile screens, with a larger text-editing panel and touch-friendly controls. Very large PDFs may still exceed a phone's available memory.
Do I need an account or payment?
No sign-up or payment is required to use the current editor.
Will the original PDF font and layout stay exactly the same?
Not in every PDF. Replacements use a closest available standard font, and PDF text does not behave exactly like a Word document. Review the exported copy, especially for mixed fonts, complex paragraphs, forms, and colored backgrounds.
Can I edit a scanned PDF?
Not as existing selectable text unless the PDF includes a text layer. This tool does not currently run OCR. You can still add supported text or images over a scanned page.
What file size is supported?
The current editor accepts PDF files up to 40 MB and JPG/PNG images up to 12 MB. Device memory and PDF complexity can also affect processing.
Looking for another utility? Browse all MindraInfo tools.