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Note that convert by default does not change the aspect ratio with the resize operation: Resize will fit the image into the requested size. It does NOT fill, the requested box size. (ImageMagick manual) Depending on the ImageMagick version and the involved input formats it might be ok to omit the -repage option. But sometimes it is required and ...
23 Σεπ 2021 · (I eventually also want to add ocr. As mentioned online, we can convert the .jpg files to a .pdf using img2pdf .jp --output combined.pdf, and then we can add ocr using ocrmypdf combined.pdf combined_ocr.pdf. My question is mainly about how to also make sure the pdf file has bookmarks (created from filenames) so that the document is easy to ...
7 Απρ 2015 · ocrmypdf combined.pdf combined_ocr.pdf. This was the original commands with more command and more tools needed: This to make a pdf file out of every jpg image without loss of either resolution or quality: ls -1 ./*jpg | xargs -L1 -I {} img2pdf {} -o {}.pdf. This to concatenate the pdfpages into one: pdftk *.pdf cat output combined.pdf
3. is right. You can test that a roundtrip changes a JPEG file with commands like convert some.jpg -format pdf -compress jpeg generated.pdf ; pdfimages -j generated.pdf generated.pdf ; diff -sq some.jpg generated.pdf-000.jpg. IMHO this answer deserves more upvotes.
I'm looking to convert a .jpg into a .pdf, so that the .jpg is positioned at a certain location: centered on (say) an A4 page, with a minimum border of 30 pixels all around between image and page borders. My starting point is just this (it just creates a PDF the same size as the JPG): convert image.jpg image.pdf
When I convert a pdf file to bunch of jpg files using . convert -quality 100 file.pdf page_%04d.jpg I have appreciable quality loss. However if I do the following, there is no (noticeable) quality loss: Start gscan2pdf, choose file-> import (and choose file.pdf). Then go to the temporary directory of gscan2pdf.
20 Νοε 2018 · 0. Create a new folder, add them to this folder and make sure they have a .jpg file ending (case might matter) Go to that folder and type in terminal convert *.jpg output.pdf. This works with as many JPGs as you want. You will get one n-pages PDF-file for n JPG-files. Share.
@jippie: No, PDF can store bitmaps losslessly.The link gives a list of compression algorithms rather than formats, because the bitmap data inside a PDF can't be extracted and viewed directly as a JPEG or TIFF, but you wouldn't go far wrong saying that PDF images are either JPEG (lossy), JPEG 2000 (also lossy) or any of several TIFF variants (lossless).
28 Ιουν 2019 · I'm trying to convert thousands of jpg images into 1 big PDF. Each image is a page from a book ...
15 Ιαν 2018 · parallel convert '{} {.}.pdf' ::: *.webp. or I can use this FFMPEG command: find ./ -name "*.webp" -exec dwebp {} -o {}.pdf \; However during the process of conversion the Webp files are decoded and the resultant PDFs have a much bigger file size. When I use the above commands for JPG-to-PDF conversion the PDF size is reasonably close to the ...
