From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Improving DocView quality for PDFs? Date: Mon, 07 Oct 2024 22:30:42 -0400 Message-ID: References: <87wmijewqs.fsf@librehacker.com> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30765"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:OCCAnToy2+LwI8WJLOUBMhULp/Q= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Oct 08 04:31:36 2024 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sy00e-0007vY-3S for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 08 Oct 2024 04:31:36 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sxzzy-0002SJ-GU; Mon, 07 Oct 2024 22:30:54 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sxzzw-0002S1-Kf for help-gnu-emacs@gnu.org; Mon, 07 Oct 2024 22:30:52 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sxzzu-000747-5r for help-gnu-emacs@gnu.org; Mon, 07 Oct 2024 22:30:52 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1sxzzq-00074Z-UA for help-gnu-emacs@gnu.org; Tue, 08 Oct 2024 04:30:46 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:148126 Archived-At: > Hi, I like viewing PDFs inside Emacs using DocView, but the quality is > noticeable lower than in Evince. It looks blocky, like it needs aliasing or > something. Could I improve this with some setting changes? It's not completely clear how to control this. It's largely a result of the PDF renderer used and I don't think the renderer used in Evince can be used for DocView. But you may want to try and install `mupdf-tools` (variously also called Pdfdraw, Mudraw, or Mutool`) which is a different PDF renderer than Ghostscript, which DocView can also use. IIRC it's sometimes better, but not always. And of course, someone else already mentioned `pdf-tools` (available from a NonGNU ELPA archive near you). Stefan