PDF quality Rhino 6

Im having trouble printing using the Rhino Pdf printer. When set to Vector, my linework/dimensions come out crisp but the raster image of the model is very low quality. I have tried chaning the resolution, but there is no improvement.
Is there another setting that I am missing?
Any suggestions on what the problem might be?

007C CHALLENGER EXT SET BUILD_20180430_RHINO PDF_VECTOR_600 dpi.pdf (1020.1 KB)
007C CHALLENGER EXT SET BUILD_20180430_RHINO PDF_VECTOR_2400DPI.pdf (1020.1 KB)
007C CHALLENGER EXT SET BUILD_20180430_RHINO PDF_VECTOR_1200DPI.pdf (1.3 MB)

If I print an image file set to JPG with 300dpi resolution I get a good quality image. This is the quality I’m looking for in the PDF setting.

Hello - so far I don’t see that an image at 300 is cleaner than 600 pdf… can you possibly send us the file you are printing so that I can try to reproduce the problem here? ( delete anything in the file that is not part of the print, SaveAs with Save Small checked, then Zip and upload here: www.rhino3d.com/Upload to my (Pascal) attention.)

thanks,

-Pascal

Pascal

Sorry for the delayed response. Could you please send a new link so I can upload - the link seems to no longer be active

The link seems to work here:
https://www.rhino3d.com/upload/

Hi Pascal

i uploaded some files for you a couple of weeks ago. Did you receive them? And do you have any feedback on this issue?

I believe Steve Baer is the PDF wizard. I’ve sent him some examples of the low quality prints at 600DPI. I agree 300DPI is crisper. Hopefully between the two sets of our sample files they can get it figured out soon.

What I am really asking here is how to make the same quality pdf as the jpeg print above. The Rhino PDF quality is very low compared to when I export as a jpeg. Please look at how much crisper the jpeg is compared to the PDF. I have this problem in every Rhino file. Not just this particular. The Rhino PDF image quality is very low.

Is there any word on a solution to this yet?? Its been ages!

I believe this is fixed in the upcoming 6.8 service release which should be available as an initial release candidate July 24. If you need an internal daily build of SR8 before next week, let me know and I’ll get you a link.

Thank you - Ill check it out!

Hi Steve

I have installed SR8 but the p[problem seems to persist. Text that is on the layout appears much clear than before, but the image quality for a Rhino PDF print is still poor.
Please see the attached examples showing the difference in Quality between Rhino Pdf, Adobe Pdf, and Image Writer

Below are the details of my system incase you need them, please let me know what you think

ADOBE PDF.pdf (222.4 KB)
RHINO PDF_vector.pdf (300.4 KB)
RHINO PDF_raster.pdf (300.6 KB)

32c milmay park 20190726.3dm (4.5 MB)

Rhino 6 SR8 2018-7-24 (Rhino 6, 6.8.18205.11111, Git hash:master @ 779a99ec30d2785f0f638420cc3ab52d5a268459)
Licence type: Commercial, build 2018-07-24
License details: Cloud Zoo. In use by: shirahockman ()

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: SHIRA-PC

GeForce GTX 970/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 391.35)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 3-23-2018
Driver Version: 23.21.13.9135
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB

When I Zoom in on the three different PDFs, all I’m seeing different is the Adobe PDF is using a thinner line width.

What specifically is it about them that you see as “poor image quality”?
Are you looking at them on the screen?
Are you looking at prints on paper?

Are you using VisualArq for printing? I don’t see a layout in this model with the hatching

Hi John

Its the fuzzines/pixellation around the line work that worries me. I am looking at these on my screen as I don’t currently have access to a printer, but the ones I sent originally were printed and you could see the difference in the print quality.

Yes Steve, I am using VisualArq. but the problem persists when I do not use it too. The original images in this post were not created using VisualArq.

Have you tested the original images with SR8? I just want to make sure.

@enric, should the VA hatched display print as vector?

Hi @stevebaer, yes, they should. I’ve tried now to print the file using Rhino 6.7 and VisualARQ 2.2, and I get a vector PDF when using the “Rhino PDF” printer. Here is the file:

32c milmay park 20190726.pdf (70.8 KB)

As you can see, it is much smaller than the one that @shirahockman posted.

Enric

I’ve compared the 3 pdfs and the jpeg. The pdf at 1200 dpi comes closest to matching the crispness of the jpeg in the details of the jet raster.

Hi Enric

When I print using Rhino PDF in Vector mode this is what I get AT 600, 1200 and 2400 dpi:
32c milmay park 20180802_TEST_2400dpi.pdf (298.1 KB)
32c milmay park 20180802_TEST_600dpi.pdf (299.5 KB)
32c milmay park 20180802_TEST_1200dpi.pdf (853.2 KB)

Its not nearly as good quality as yours. I am not sure what I am doing wrong!

Here is my system info:
Rhino 6 SR8 2018-7-30 (Rhino 6, 6.8.18211.21311, Git hash:master @ 985b963715ab119fd03be2906bf04f6ed821bf40)
Licence type: Commercial, build 2018-07-30
License details: Cloud Zoo. In use by: shirahockman ()

Windows 10.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: SHIRA-PC

GeForce GTX 970/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 391.35)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 3-23-2018
Driver Version: 23.21.13.9135
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB