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  1. #1
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    What makes picture sizes change spontaneously? (Wo

    I have found that when I paste a picture into a Word document, then set its size, the size often changes spontaneously for no good reason -- sometimes for no apparent reason at all.

    Here's a typical example. I use the "Insert / Picture / From file" command to insert a JPG image into a Word document. I then use "Format / Picture" to set the picture's height and width to 250% (relative to the original picture size). Later, after some editing that should not have affected the picture at all, I notice that it has become microscopic. I use "Format / Picture" again and find that its size has changed to some much smaller number, such as 100%, 98%, or 30%.

    Sometimes a picture's height and width are set to different values (e.g., to 104% and 102%) even though "Lock aspect ratio" was checked, and still is.

    Note that this is an example, not a specific description of what causes the problem! I have not identified any particular operation that causes or prevents it. For example, pictures that are inserted with "Insert / Picture / From file" and with "Edit / Paste" seem equally susceptible. Also, locking the link to the picture with Edit / Links (if the picture is defined by a link) does not help.

    I specified a version/service release of "Word 2003" because I am currently using that version, but this is a long-standing problem. It goes back several releases.

    Can anyone suggest what is causing this to happen, and how to prevent it?

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    Re: What makes picture sizes change spontaneously? (Wo

    I do NOT recall of ever having this problem, however I NEVER change the size of a image within Word. I always change a copy of the image using a graphic program to the size I want to be used. This has a lot of side affects including reducing the over all size of the Word document. This copy of the image is also place in the same folder of a sub-folder of the one that the document is saved in. I also do all of my cropping outside of Word.

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

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    Re: What makes picture sizes change spontaneously?

    >... I NEVER change the size of a image within Word. I always change
    > a copy of the image using a graphic program to the size I want to be used.

    Doesn't that also reduce the resolution of the image (assuming you are reducing its size)? Modern printers have pretty high resolution, and professional composing equipment is higher, so that would not be not a good thing.

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    Re: What makes picture sizes change spontaneously?

    Using high resolution images in Word does not make sense, unless one was to publish a top of the line rag. Which I would use a professional product to do this, NOT MS Word. Most print out of Word documents, the image quality (resolution) and size (width and height) do NOT need to be very high. Unless one has a printer that is of the "Professional" gage, the image(s) do not need to be "SHR" such as one would get from a 5-8 mega pixel camera. These high res images do nothing but bloat a Word document.

    I do a lot of "Family Research" and have seem many a Word document full of high res images and some with low res images, and one can not tell the difference when viewing the printed documents. In one of our Family Research groups, we put together two documents, one using low res and one using high res images of the same images and those people that were not in on the information could not tell us which was which. If I remember right we used images taken with a 5 mega pixel camera and then for the low res we made the images in the 600-800 KB compared to the 4,000 - 5,000 KB. A HP photo printer was used to print out the documents.

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

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    Re: What makes picture sizes change spontaneously?

    Although the modern printers have a high resolution, the photo bitmaps you print on them are typically at a resolution which far exceeds the limits of the printer. The rough rule of thumb that I use for photo image sizes is to use an image no larger than a resolution of 2 times the LINESCREEN of the printer.

    A photoprinter capable of 1440dpi doesn't give any increase in discernable quality on photos over 240dpi. Going above this just causes slower printing and bigger file sizes.

    However, if you are using one-bit images (black and white) then you do want to match the printer resolution to some extent. But my eyes can't discern the benefits of images over 600dpi on lineart either.

    There are numerous references on the web to optimising print quality resolutions - here is one which agrees with me http://www.creativepro.com/story/feature/8...ml?origin=story but I'm sure you can find plenty that are similar but use different rules of thumb.
    Andrew Lockton, Chrysalis Design, Melbourne Australia

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    Re: What makes picture sizes change spontaneously?

    When I wrote my previous observation I was thinking of changing the picture size by changing the image resolution in a picture editor. For example, to present a picture at 50% of its "natural" size, you create a version in which the number of pixels in each dimension is reduced by a factor of 2.

    I forgot that with JPG's, at least, it's possible to set the number of dots per inch, allowing independent control of resolution and picture size.

    There is a more serious problem, though: making any sort of adjustment in the picture editor adds extra time-consuming steps. Instead of just sliding a handle until you see the result you want, you must calculate the resolution you need to achieve the result, load the picture into the editor, adjust it, save it, and insert it into Word. If you have to adjust to effect and you don't get it right the first time, you must do all that again... and again... and again.

    I know for dead certain that when I'm doing work for a client and billing by the hour, the client won't tolerate that.

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    Re: What makes picture sizes change spontaneously?

    Using your reasoning, the total number of pixels is actually reduced by a factor of 4 (length x height). <img src=/S/duck.gif border=0 alt=duck width=23 height=23>

    I agree, the 'best size' for a bitmap is different to the 'optimum size' since the best size takes into account the flexibility required to size the image to suit the layout within reason. I personally usually aim at a resolution of 150dpi for laser printed jobs and am not hung up about stretching the image up to around 100dpi or squeezing it down to 240dpi or so. But when the layout is final and I need to email the document around, I have a look at the file size and sometimes revisit the resolution of the squeezed images.
    Andrew Lockton, Chrysalis Design, Melbourne Australia

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