Edit PDF in Adobe Acrobat

Hello @miodrag_6734!

I hope you are doing well, and thanks for reaching out.

If Acrobat converts your document to a raster image during editing, it is unusual and often related to how the file was created or processed. 

• The PDF contains scanned images or flattened content

  • If the original document was scanned or exported as an image (from AutoCAD, for example, without vector preservation), Acrobat treats it as raster during editing.

• OCR is being auto-triggered

  • Acrobat may detect the content as non-editable and automatically run OCR (Optical Character Recognition), converting the page to an image background with editable text on top.

• The incorrect export or print-to-PDF method was used

  • Saving as a PDF via print drivers (rather than “Save As” or “Export to PDF”) can flatten vector content.

Turn off OCR when editing: Choose Edit > Text. To turn off automatic OCR, deselect the Recognize text option in the right pane. Acrobat won't automatically run OCR the next time you open the document for editing. For more information, see this article: https://helpx.adobe.com/acrobat/using/edit-scanned-pdfs.html

Check if your PDF is really a vector file: Zoom in very closely (800–1600%) on a line or shape. If it blurs or pixelates, it's raster. If it stays sharp, it's vector, and editing should preserve that. 

Use Acrobat’s Preflight Tool (Pro only): All Tools > Print Production > Preflight. Run a profile to verify whether vector elements are present. See this article for more information: https://helpx.adobe.com/in/acrobat/using/analyzing-documents-preflight-tool-acrobat.html

If your PDFs are created from CAD or design software, make sure to export using native PDF options (not "print to PDF") to preserve vectors.

Please ensure you have the latest version of Acrobat installed on the machine: 25.001.20474 (Win) | 25.001.20476 (Mac), Apr 28, 2025. Check for any pending updates from the Menu > help > check for updates, install the updates, restart the app and the machine, and try again.

Let us know how it goes.

Thanks,

Anand Sri.