1
vote
0answers
98 views

Best settings to convert massive pdf hiking maps to images using ghostscript/imagemagick

I did convert all of the Te Araroa Hiking Maps from PDFs to JPEGs so far. The original maps are 16-64MB PDFs, which take forever to load on my Android Phone. I converted them using Ghostscript and ...
0
votes
1answer
689 views

PDF to PNG with ImageMagick/GhostScript: Colorspace=sRGB breaks script

In order to convert a PDF with 100 pages to single PNG files, I've been using the following command: C:\Program files\ImageMagick\convert -density 150 -alpha Opaque file.pdf file.png But that ...
4
votes
1answer
656 views

Thumbnail generation with imagemagick doesn't render the correct colors

Generating thumbnails of PDFs with imagemagick sometimes renders incorrect colors. We're using an old version of imagemagick (6.5.7-8, that's the version installed on the heroku servers). Here is the ...
3
votes
2answers
1k views

PDF => raster, is it possible to adapt the sampling resolution to the input page size?

I am using convert (Imagemagick component, delegating to Ghostscript in background) to transform the first page of PDF files to images. Usually, convert -density 200 file.pdf[0] first_page.png will ...
20
votes
3answers
3k views

Convert HTML to image

Background Batch convert various syntax-highlighted source files (C, SQL, Java, PHP, batch, bash) into high-resolution images (600dpi), suitable for an eBook and printed book. Failed Solutions A ...
1
vote
1answer
709 views

Tesseract OCR - Newbie Questions!

I just installed Tesseract OCR and was able to convert a TIF image to its corresponding text. The application seems fairly easy to use, but I am struggling finding the documentation that will help me ...
10
votes
2answers
11k views

Using Ghostscript to convert multi-page PDF into single JPG?

I know Ghostscript can convert PDFs to JPGs, and in the case of a multi-page PDF, can rip each page to an individual JPG. But is it possible to have it rip them to one JPG, so that the pages are ...
1
vote
1answer
1k views

Imagemagick PDF to JPG conversion failing

I'm trying to convert the first page of a PDF to a JPG. I'm pretty sure I got this to work with certain PDFs, but is it really possible that certain PDFs are made incorrectly and cannot be converted? ...
2
votes
3answers
1k views

Imagemagick, Snow Leopard and PDF Conversion

Having difficulties with Imagemagick and Snow Leopard. Imagemagick was installed using the install script from here here. Everything builds and installs correctly. Imagemagick behave normally for ...