| Problem | Solution | | :--- | :--- | | The PDF is scanned but blurry. | Use software like Adobe Scan (mobile) to enhance the image. | | The file is 100MB+ and laggy. | Compress it using Smallpdf (desktop) but keep quality above 150 DPI. | | Arabic letters are separated. | Change the PDF reader's rendering engine to "Adobe" if using a third-party app. | | Cannot highlight text. | The PDF is an image scan. Use the "Draw" or "Shape" tool to create highlight boxes manually. |
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