php - How to generate texts as image in PDF -

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i using dompdf generate pdf file. pdf contains texts. need content of pdf show image instead of texts. not know start. cannot find using google. suggestions?

more info:

in pdf generated, can select specific portion of texts highlighting using mouse. in pdf should generate, should not able select portion of texts because texts image. pdf should generate contains image, , image contains texts.

you generate png first using phpgd / imagemagick shove through dompdf


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