pdf ->image->pdf->searchable pdf

Need:
Sometimes you might want to get a section of pdf and insert it into other documents, and make this section searchable

Idea:
Extract a section of PDF as image, insert image into PDF or PowerPoint, make the image searchable


How:
pdf
select the section using "Snapshot tool"

gimp:
create image in gimp
change the ppi(pixel per inch) to >= 144.
paste the file
save as 144dpi.jpeg

pdf
convert the file to pdf
run OCR

the section becomes searchable again

Example:
Available upon request