From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric S Fraga Subject: Re: Viewing pdf images Date: Mon, 10 Apr 2017 18:06:22 +0100 Message-ID: <877f2s9oq9.fsf@t3610> References: <87zifpb5ib.fsf@biologica.mercovich.net> Reply-To: Eric S Fraga Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:34015) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxdGj-0004KM-JB for emacs-orgmode@gnu.org; Mon, 10 Apr 2017 13:38:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxdGg-0000Tw-F1 for emacs-orgmode@gnu.org; Mon, 10 Apr 2017 13:38:25 -0400 Received: from mail-db5eur01on0091.outbound.protection.outlook.com ([104.47.2.91]:15712 helo=EUR01-DB5-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cxdGg-0000SV-4H for emacs-orgmode@gnu.org; Mon, 10 Apr 2017 13:38:22 -0400 In-Reply-To: (Eduardo Mercovich's message of "Mon, 10 Apr 2017 16:51:45 +0000") List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Sender: "Emacs-orgmode" To: emacs-orgmode@gnu.org --=-=-= Content-Type: text/plain On Monday, 10 Apr 2017 at 16:51, Eduardo Mercovich wrote: > Hi Marvin. > >> I also agree that in terms of resolution (pix per inch ) pdf and >> jpg are the same. However, pdf (and SVG) allow the image to be >> scaled with little loss in image quality. > > Sorry to disagree, but again, pdf images can be vector (like svg) > and infinitely scaled or raster (bitmap, as a jpg) and in this > case the quality is on the file. The pdf format only adds and > envelope around the original jpg image, or in the conversion it > can be downscaled. Totally correct. And, further, pixels per inch (i.e. resolution) is a property of an output (e.g. printer or screen) or input device (e.g. camera sensor), not an inherent property of the bitmap image. A bitmap file simply has a size which can be expressed as pixels x pixels. If you display an image on a high resolution screen (without scaling) it will appear smaller than if you display it on a lower resolution screen. -- : Eric S Fraga (0xFFFCF67D), Emacs 26.0.50, Org release_9.0.5-385-g72fc2d --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQSPXCedOQfhSlwpVw3IkZPY//z2fQUCWOu7jgAKCRDIkZPY//z2 fZ7OAJ9xR1Re1uJY3k6qwIXERUTeMiOzJwCdElDtF5lcvtKy7sVdxUmodWHyqTc= =Fgmt -----END PGP SIGNATURE----- --=-=-=--