I found no benefit from converting each image individually to a PDF then resizing, or playing with the plethora of other settings in Adobe. The primary goal here is to reduce the size of the resulting PDF to under 45" in height as this is the threshold for Adobe's OCR. Ok well I discovered that the size of the PDF once following Shawn Patrick Rice's suggestion for Optimizing Scanned PDFs and OCR+ClearText was fairly negligible between a -resize setting of 30-50%. It pretty much seems that once I go below 40% I start losing pixel data. I tried with -scale instead of -resize but am really not seeing a difference in the output. I believe I'm going to need to start looking into filters, but before I potentially waste my time converting using all of the filters then comparing to find the one I want to use, is there a better way to just reduce the size, maintain quality, then convert to PDF? I don't see why I would be losing pixels here. convert -resize 20% -quality 100% *.png 20percent.pdf The quality of the images is visibly less than before reducing the size. So I figure since 16% of the image is more than adequate for viewing the entire width of the page on my screen, I could reduce the image sizes to 20% of their original values and still maintain the same image quality. The quality of the PDF pages was perfect, they were just too large. Viewing in page width mode resulted in a scale of 16% of the original image. So first, as a base file, I did a simple conversion of 26 of these "pages" to a single pdf, and the total filesize was 46MB for 26 pages. The image files are extremely large, I have no need for the amount of resolution that they offer. I have not used it to resize images yet, only these screengrabs, but it seems to work pretty much as advertised.I have a bunch of images that I want to convert into a single PDF, the images are primarily images of text (similar to scanned images of a textbook). Perfect Resize, part of the Perfect Photo Suite 8.5 package I recently acquired, uses fractal technology to allow high quality printing from low quality sources such as camera phones or old webcams. I used Perfect Resize 8 to resize them without noticeable degradation. BTW, the actual error message windows are quite small. I was inspired, however, by a particularly zesty error message which included a rare exclamation point and one error message on top of another. I’ve actually collected these error messages for a long time so I’ll have plenty to share going forward. FineReader is, by most standards, a quality product. It might be unfair to single out ABBYY FineReader’s inscrutable error spew as the opening salvo in this collection. The world is run on crappy software, and on day I swear the error messages will drive society to the brink of chaos. This commences a new category at Szapp: “SHIT DOESN’T WORK”. Most time the conversion works, but FineReader fails to do the job on a number of occasions, throwing new and inexplicable errors which reveal absolutely nothing about how I might get the task done. Using ABBYY FineReader to convert a bunch of OCR projects to PDF is time-consuming, but it must be done before importing my scans of “The Etude” Music Magazine into FlexReader.
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