Hello,
I have old scanned plan (jpg / pdf), size - 7mb , it's the smallest size and still remain readable ,
I pasted it in the layout .I made export to dwf .
The dwf file size after the export is 30mb .
it's too much big ,
How can I reduce the dwf file size at least 7mb as the source.
Thanks
Solved! Go to Solution.
Solved by Alfred.NESWADBA. Go to Solution.
Solved by Alfred.NESWADBA. Go to Solution.
7mb is still a very large file. I would try to reduce that file size some more if i were you.
if you have adobe you can save your PDF as a reduced sized PDF. I regularly deal with full size (D and E) raster drawings in pdf format and they are usualy around 1mb if not less.
Is your image black and white? you may be able to trim your file size by conveting it to black and white if it is not already.
CADnoob
Hi @Anonymous,
@TheCADnoob's solution is probably a good idea. SInce the scan is raster based the DWF doesn't really give you the compression you need. A plot or export to PDF at the correct resolution will get you closer to your goal.
Hi,
when you speak about "26mb 200dpi" or "7mb ,150dpi" you are speaking about the image resultion you used during scanning.
But what is the DWF setting for your output resultion? That is what the DWF makes smaller or larger.
- alfred -
I thought that the values of the image will affect the export of dwf,
basically you say what affect it - is the definition of the dwf.
I tried, it reduces from 30 MB to 20 MB.
I do not see why this could not stay closer to the original size of the image.
What information is added ?
Hi,
>> I do not see why this could not stay closer to the original size of the image.
Because of two reasons:
Resume to the DWF output: it resizes the image to the output, independent from the size it had previously.
If you have an image with 100x100 pixel and you plot that to 10" x 10" by 300dpi it will be scaled to 3000x3000 pixel.
- alfred -
Hi ,
First of all thank you for the reference and investment.
I think you're really brings me to solve the problem.
My problem is :
I have scanned plan as jpg, I can't get the dwg file.
It compress to JPG, 150dpi ,5300x16000 pixels ,7mb (the smallest resolution and still readable).
I need to export it as dwf size 35"x150".
I need it to be readable .
Would you please tell me how do I calculate by your explanation for this situation?
Thanks
Hi,
>> I need to export it as dwf size 35"x150".
>> I need it to be readable
As "readable" is a relative wording (how large are the text objects, how far do the user stay away from the poster/paper, ...) I would make it simple:
Plot to DWF with varying resolutions for raster image (look to the above screenshot) and decide by yourself which is the resolution fitting best to your needs (as readable as necessary, as small filesize as possible).
The lower the resolution the smaller the filesize, but the readability also gets reduced.
Good luck, - alfred -
Hi,
Thanks
It really helped, last night I did a lot of experiments with the resolution.
And actually managed to significantly reduce the size of the dwf.
God bless you
Thank you for your patience
Eliraz
Hi,
you are welcome, good to know you got it working in the way you need it 😉
- alfred -
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