I am currently using GIMP to layer two photos into one photo file for a work project. I have over 7000 107x80 JPG images that I need to place on a 160 x 100 PNG background that has a logo on it and saved as the JPG file name. The 107x80 JPG needs to be placed to the left of the logo on the background. I have been doing this one at a time but it is very time comsuming. I have used BIMP to resize all the JPG images and would really like to find a way to use BIMP to automate this process or find another program that can do this process. I have seen several post about Imagemagick but I am not very good with console based programs. Is there a way to do this in GIMP or another Photoshop program that can do batch processing to place the photo in an exact spot on the background? Would it be better to get Photoshop and do a Macro? Thank you for your help JPG on background Background PNG
You can use ImageMagick to composite one image at some exact location on another image. ImageMagick convert can do this operation and is command line driven. See http://www.imagemagick.org/Usage/layers/#convert. The convert process can be scripted to loop over each of your images. Or if you have the same background or the same overlay image, then you can process a whole folder of files using the mogrify command. See http://www.imagemagick.org/Usage/basics/#mogrify and http://www.imagemagick.org/Usage/basics/#mogrify_compose. If you provide a pair of images and the location where you want the one image to be placed on the other image. I can give you more direct commands.
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This is my first question here, I tried to search for something like this, but couldn't find much.
So, I got about 200 old PSDS that have an outdated version of some images (Blurry and in low resolution), but they have text layers, and some retouching layers. And I managed to scan and get way better quality images, but I need to paste them one by one into the PSDS so I can align them and recycle the text and retouching layers, so I was wondering if there's a way to sorta automate the image copy-paste.
The file names are something like this:
old_psd_0001.psd, old_psd_0002.psd, old_psd_0003.psd...
new_png_0001.png, new_png_0002.png, new_png_0003.png...
I'm trying to do a copy pasting image script, all the other aligning and cropping work is automated with actions.
Thanks to anyone able to help.
I'm working with PDFClown and I'm trying to extract images from a pdf file. I use the example code provided by the source code that can be found at http://pdfclown.org.
ImageExtractionSample.java.
The problem is the images are negative and flipped horizontally. Does anyone know how to resolve this problem?
Check with other PDF files to see if other PDF files are also giving the rotated or flipped images. ImageExtractionSample.java is not checking rotation or matrix defined transformations for the image object but just writes the content to a file as is (so it will work for JPG images but not for CCIT encoded images for example).
So there are things to consider when you extract image from PDF:
image can be rotated using the attached transformation matrix (CTM);
image can be rotated/transformed as part of the form which is transformed;
image can be placed without transformation on a page but the page itself is rotated;
image may contain the overlaid Mask on top of it (and the Mask can be rotated and transformed);
JPG image is stored pretty much as is but there are other formats supported by PDF like CCIT compression, LZW compressed images etc;
But the general suggestion is that when you extract JPG image from PDF using PDFClown you should just flip and rotate extracted images like suggested on the SourceForge project discussion page.
if you could point to the particular PDF sample file then it would be easier to suggest the solution.
If you're on Windows then you may use this free PDF Multitool utility to compare non-transformed and transformed images from PDF using "Extract raw images (without transformation)" option in images extraction dialog.
Disclaimer: I work for ByteScout, the PDF Multitool utility is free for both commercial and non-commercial purposes.
I need to extract vector graphics from a PDF image and import them into GIMP, either as paths or as high-resolution raster images. Specifically, I need to get contour lines from USGS topographical maps and overlay them on satellite images. Any suggestions?
So far I have tried:
--Using GIMP's native PDF importing function to import them as raster images. Problem: To do so at high resolution crashes my computer. Possible solution would be to import only a selected area of a PDF, but as far as I can tell this is not possible.
--Using ImageMagick to convert the PDF to a raster image. Problem: Used with the "-scale" parameter, "convert" appears to rasterize the PDF and then upscale it, leading to a choppy image.
--Using InkScape to extract the necessary vector elements from the PDF. Problem: InkScape freezes when I try to open a moderately large (25 Mb) PDF.
Any other ideas?
Many thanks,
treacl
The option you didn't mention above is to try to use the ghostscript program directly to render your output - ghostscript is used internally by GIMP to import PDF files, so you likely have it installed already.
There are tens of command switches to pass ghostscript for it to render a file into another format - the switches you need to pass are for determining the output size, resolution and which page to print. I didn't find any switch to select a portion of the page to be rendered - so, if your document is a single page, it is possible the generated file will still be to big for GIMP - but you will likely be able to crop it with ImageMagick, at least.
I guess the relevant command line for you would be something along:
gs -dNOPAUSE -dBATCH -sDEVICE=png16m -sOutputFile=page.png -dFirstPage=<pagenumber> -dLastPage=<pagenumber> -r<dpiresolution> -f<filename.pdf>
If the resulting image is still too large to be generated or operated upon, you can try changing the output format to use a smaller color depth (this one is 3 bytes per pixel: png16m) . It should be possible to pass postscript commands to transform the device, so that the area of interest is scaled up to your page size (and the remaining parts are cropped out of the rendering) - that would be the definitive fix for you - but of the top of my head, I don't know how to do that with ghostscript.
Alternatively, you can try passing ImageMagick the -density parameter as suggested in the comments.
This is not strictly a programming question, but it's related to programming task I need to perform this in order to make an iPhone app.
I have a PDF file with a large image (say, a campus map) which I want to store as a PNG image to include as resource in the app. The image I want itself is much larger than the screen area (a lot larger, about 4000x4000 px). So I cannot just take a single screenshot of the PDF and save it as PNG. The only way I know to accomplish this is to take a number of screenshots of different parts of the image and manually stitch them together in an image editor. There will be 8-10 images to stitch together, if not more.
I wonder if anyone knows a more efficient way of doing this? Acrobat PDF reader does not allow this. Are there any tools or tricks in either Windows or MacOS I can use? Googling this did not bring anything that works.
It would also be an option to use the PDF directly, iOS has pretty good support for reading PDFs, see the ZoomingPDFViewer sample code from Apple for an example.
As for your actual question, I'm not sure if there are existing tools that do exactly what you want here (though I'd guess there are), but it would also be pretty easy to make a small Cocoa command-line tool that converts a PDF to a number of bitmap tiles using Core Graphics.
You could use Ghostscript to convert your pdf to a png.
A command like
gs -sDEVICE=png16m -r600 -o my_Map.png my_Map.pdf
would provide you a png from a pdf image.
I'm creating a Custom Google Map based on an image in an Adobe Illustrator file. I need to cut the file into 256px x 256px PNGs to feed into the Google Maps API.
You can write scripts to automate tasks in Illustrator using ExtendScript, a modified version of JavaScript. I found one example of a script for Photoshop that makes tiles for Google Maps (Hack #68 in this book) but I haven't figured out how to port this over to Illustrator.
The main problem is I can't figure out how to tell Illustrator to isolate 256px x 256px portions of an image. The Photoshop script does this by selecting portions of the image of that size and copying them into a new file, but as far as I know you can't do that in Illustrator.
Any ideas?
I've got no experience writing scripts for Adobe products, but since Illustrator handles vector data, the tiling algorithm is slightly different. There is a Python script for MS VisualEarth that tiles a set of GPS points (demo), maybe you can take some ideas from it.
Another choice may be to (programatically?) render .AI files to .PNG or something similar an then tile it into 256x256px tiles using that PS hack you referenced.