JPEG (lossless, smallest) ??

[narlee]

Export>Image>

I tried these settings (on 72 dpi) and got not difference. Anybody know about the "lossless" and "smallest" settings.

Geof Narlee

[BillyGrey]

I think that lossless refers to best quality export at full image resolution, and smallest optimizes for small file size at the expense of sharpness/detail/etc...On screen, it may be difficult to see the difference, but I can usually tell by looking closely at edge detail/overall quality. Also, simple vector line/fill type images usually do not dither and break-up as badly with lower dpi settings, but more complex or raster type images & photo real renders usually suffer with lower settings.

Also, 72dpi is fine for on screen image display, but is a pretty low resolution for printing...
You have to look twice to see the difference on screen, but in print the diff will be there.
I usually never print below 150dpi, and usually 300, or even much higher if I want really nice image quality.

hth
Bill

[JTF]

I have just exported to lossless at 100% 600dpi and the file size was 12meg.

Then exported to smallest at 100% 600dpi and the file size was 3 meg.

When viewed on screen I could not notice a difference.

I have started exporting typical wall sections and details at very high res. and importing them onto detail views and then placing them on sheets.


I find it a fast and easy way to reuse typ. details from other drawings.

[SkiSouth]

Traditional Bluelines are at a resolution normally about equivalent 150 DPI (according to what I've been told). Obviously black line reproduction is only limited by the machine's ability, but anything over 300 DPI for construction is not really necessary, again depending on the reproduction methodology of the construction documents.

Renderings are a different matter. The problem you get into on Losslessness etc, is opening, editing and then resaving a file saved with a lossless factor. It's like the reproduction of VCR tapes. Every generation of saving more information is lost. Keep an original at high resolution if you are editing, and always go back to that original to edit. If in photoshop, keep the PDF and the JPEG you are working with.

In photoshop, make a new layer on top of the stack and hit Control-Alt-Shift and "E". This will take a snapshot of all the layers turned on and save it as this new layer. That way you have all your edited layers (to go back to) AND a single layer as the finished image.

[aggockel50321]

I have started exporting typical wall sections and details at very high res. and importing them onto detail views and then placing them on sheets.


I find it a fast and easy way to reuse typ. details from other drawings.

Have you tried exporting them as .dwg or .dgn.

Then resolution issues dissapear...

[narlee]

Through Google, I found this link which has some useful information on "lossless", and apparently "smallest" is also a compression technology associated with jpeg.

http://graphicssoft.about.com/gi/dyn...1%2Findex.html

Geof Narlee.

[SCShell]

Have you tried exporting them as .dwg or .dgn.

Then resolution issues dissapear...

Hey there,
I never even thought of this since I don't even own ACAD. However, now that you mention it, I can think of ways that this would really help. Are the file sizes similar to JPGs? Are there other advantages other than being able to edit them? (since a rastor image is not editable within Revit)
Thanks in advance Mr. Big Dawg.
Steve

[aggockel50321]

If they're standard revit views that you're exporting to use as details in other projects, using .dwg or .dgn does have some advantages.

You can turn layers on & off, or delete them entirely. If you want to add any dimensioning, you can snap to lines. And you can control lineweight colors & widths.

If you have any raster images in the revit view being exported to .dwg, they go out also, as images into the .dwg file.

As far as file size, I've never really checked, but if anything I'd guess smaller.

Hope this helps.

[SCShell]

Thanks Andrew. It does!
Steve

[avton343182]

In exporting Revit views for details in other projects, utilizing formats like .dwg or .dgn can offer more flexibility in terms of editing and layer management compared to JPEG.
When dealing with JPEG compression, especially for detailed sections, it's essential to find the right balance between file size and image quality. While lossless and smallest settings might not show a significant difference on screen, the impact on print quality can be notable. Also if you want to use third party application for optimizing JPEGs without compromising quality with lossless consider using tools like Jpeg Compressor to efficiently manage file sizes.

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In exporting Revit views for details in other projects, utilizing formats like .dwg or .dgn can offer more flexibility in terms of editing and layer management compared to JPEG.
When dealing with JPEG compression, especially for detailed sections, it's essential to find the right balance between file size and image quality. While lossless and smallest settings might not show a significant difference on screen, the impact on print quality can be notable. Also if you want to use third party application for optimizing JPEGs without compromising quality with lossless consider using tools like https://jpegcompressor.com/ to efficiently manage file sizes.

yes here is the tool https://jpegcompressor.com/