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Thread: PDF File Size

  1.    #1
    Member koolair's Avatar
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    PDF File Size

    What are your pdf file sizes like?

    I print 36x54 sheets with title block (c/w logos), floor plan, rcp.

    I have arch, struc, mech eng (filter out all except p-fix).

    Tag all:

    engineer's pfix
    stuctural's columns
    arch's rooms and ceilings
    obviously all of my stuff too.

    Roof gravel/green roof hatching on
    drop panels on floor above (via rcp) are on and hatched (conc).
    floors are hidden.

    My pdf files range from 4 to 8 MB for 1:50 drawings.

    Admittedly there's a lot of graphics on the drawing but I felt it made the drawing more comprehensive especially on a live BIM360 design build project. More conversations and details get fleshed out on a drawing with lots of legible stuff on it.

    Engineer's 1:100 drawings are 400kb, however it requires a lot of jumping around from arch/struc/elec cross checking stuff.

    Tried looking for a pdf compressor but all that's available are online upload/download later web sites. Not interested.

    Any ideas?

  2.    #2
    Moderator cellophane's Avatar
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    Is that for individual pages or for the whole set?

  3.    #3
    Member koolair's Avatar
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    One sheet. =(

    Sent from my SM-N950U using Tapatalk

  4.    #4
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    Most important: vector or raster pdf.

    Raster pdfs file size doesn't depend on the number of displayed elements, only on the resolution.
    Vector pdfs file size can grow huge if you display a lot of elements, or if you use heavy hatches. However as they are vectors, they don't have a resolution, you can zoom in indefinitely (or until the pdf viewer lets you zoom in) without losing a detail. Also view scale doesn't matter with vector printing, 1:50 and 1:100 should generate similar file size.

    Revit will show you a warning if you select vector, but it can only print in raster. The reasons for this are in the help: https://knowledge.autodesk.com/suppo...E0615-htm.html

    Which one is the better depends on the use case of the pdfs:
    - If you will just print them, display on a monitor doesn't matter, than check the resolution of the printer and print a raster pdf in that resolution.
    - If you want to view it on a screen, it's better to stay on vector. Try to repace your hatches to something not that heavy, a lot of hatches contain unnecessary lines. Also check if some families has a lot of lines which are hidden by lineweight.

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