I am looking for the CorelDraw menu to reduce file size. Where is it? Or is this automatic? My file is over 222,000KB. My print shop is freaking out. The prepress PDF file size is huge. I can break down the PDF into smaller chunks, but they are still each very large. Your comments have been very helpful.
Diana Jordan said:
I am trying to keep the CDR file size down. I successfully used Ventura Publisher for 20 years. There I could choose to leave the picture files external to the publisher document. In creating a 28 page magazine, I was able to produce manageable PDFs for the printer.
Now with CorelDraw 2018, every time I add a picture file internally to the CDR the file size jumps. At the moment, it is over 1GB. The PDF size is out of control.
But I just tested a CDR. With no JPG, the file size is 1991KB.
Adding a JPG of size 5400KB to the CDR, leaving it external, increased the size of the CDR to 16900KB.
I don't get it.
The problem is creating a press quality PDF for the printer. Way too big.
there's a common mistake about this, I'll try to explain
if you have a JPG image, while it's closed and compressed, the file size could be 5 Mb for example. If you open the file (with PhotoPaint or Photoshop) or place into another program (such as CorelDRAW or InDesign), the file will be un-compressed. So, the image size of the JPG could become to 20 Mb 50 Mb or 80 Mb according the file compression used.
Then, if you have 10 images at 80 Mb each, you will have 800 Mb, although each JPG could be just 5 Mb while is closed and compressed.
The PDF will be also big, according the file content.
Anyway, you could check the image resolution. You don't need more than 300 dpi of eah image at final size. If you convert to bitmap at 300 dpi, the file size surely will be smaller (1 Gb is too big, no matther the quality)
if you Publish as PDF using JPG file compression (with only few file compression in order to maintain quality) at 300 dpi resolution, using compatibility with Acrobat 8.0 or higher, surely you file will be smaller
What resolution are the images inside CorelDRAW?
They are TIF files full color 300 dpi. 43 images in a 28 page document. thanks.