To draw a square or circle, or to draw a line that’s horizontal, vertical, or at a 45° angle, press Shift while you draw. To draw free-form lines using the Pencil tool, drag where you want to begin drawing.
With Mac OS X and the more recent versions of Acrobat Pro, the PDF printer option does not work. What does work is doing basically the same thing in Preview App. Open the multi page file in Preview, select FilePrint. In the Print dialog set your sheet size as if you are using a printer. You may want to select ' Auto Rotate', ' Scale to Fit' and ' Print Entire Image'.
Then in the lower left corner is the drop button ' PDF' and in that menu select ' Save as PDF'. Give it a new file name, click Save and then you can open the resulting file in whatever PDF app you want and the sheet sizes are the same.
![Pro Pro](/uploads/1/2/5/6/125663063/622931003.png)
The page sizes are looking different in your PDF because the images were originally set to different DPI (even if images are identical HxW in pixels). The good news is - it's only a display issue - and can be fixed easily. An image with a higher DPI value would display smaller in a PDF (displays at the 'print-size' of the image). To avoid this, open each image in an image editor like GIMP or Photoshop. Open relevant image print control dialog box and set a suitable uniform DPI info for all the images. Remake the PDF with these new images.
If in the new PDF images are too big - redo the DPI setting for each to a higher value. If in the new PDF pages are too small to read on-screen without zooming, again - redo DPI adjustment, this time put a lower DPI value. Ideally, 150 DPI should be good enough for images of 2500X2500 pixel - on a 17 inch monitor set to 1366x768 resolution. BTW, the PDF file shall print each page at the specified DPI of that page.
If all images are same DPI, you'll get a uniform printing. Hope this helps:). Open the PDF in MacOS´ Preview App. Chose File menu – Export as PDF. In the export dialog klick the Details button an select your page size. Click save All pages of the resulting document will be scaled to that size. The resulting file size is nearly identical to the original PDF, so I conclude, that image resolutions/compressions are not changed.
![acrobat For Mac \ acrobat For Mac \](http://a2.mzstatic.com/us/r30/Purple7/v4/66/67/16/666716a5-473a-00b9-0433-d2983e5eaf49/screen1136x1136.jpeg)
Hints:. I am not sure whether the 'Export as PDF' menu item is available by default or only if Adobe Acrobat is installed. My first trial was to use Preview App and print (!) into a new PDF, but this leads to additional margins around the page content.