You can import InDesign (.indd) files into QuarkXPress (.qxp) files, using Adobe InDesign PDF or IDML. (See steps below.) If you do not have the Adobe InDesign application or a Creative Cloud subscription, you could still open InDesign in QuarkXPress, by using Markzware’s IDMarkz macOS app. The steps are in this article, which includes a video that shows you how:
Today, Markzware explains how you can import Adobe InDesign into QuarkXPress. To do this, you could export InDesign to PDF, save InDesign as IDML, or export IDML via IDMarkz.
Export InDesign to PDF for Importing into QuarkXPress 2019

Per Adobe, the following steps outline a method to export an InDesign file to PDF. (Once in PDF, the file can be imported into QuarkXPress.)
“(1) Choose File > Export.
(2) Specify a name and location for the file.
(3) Select Use InDesign Document Name As The Output Filename, if you want the exported PDF to have the same name as the name of the document from the next export.
(4) For Save As Type (Windows) or Format (Mac OS), choose Adobe PDF (Print), and then click Save. When you select the Adobe PDF (Print) option, you cannot include interactive elements in the PDF. To export an interactive document to PDF, see Dynamic PDF documents.
(5) Do one of the following:
• To use a predefined set of job options, choose a preset from the Adobe PDF Preset menu.
• To create a PDF/X file, either choose a PDF/X preset from the Adobe PDF Preset menu, or choose a predefined PDF/X format from the Standard menu.
• To customize options, select a category from the list on the left and then set the options.
(6) For Compatibility, choose the lowest PDF version necessary to open the files you create.
(7) Specify the following Accessibility Options under the Advanced tab, if necessary:
• Display Title Choose what to display in the title bar of Acrobat when it opens your PDF. Available options are Document Title and File Name.
• Language Choose the document language for the PDF. This determines the default language for the exported PDF. If the required language is not in the list, you can also type the standard language ISO code.
(8) Click Export (Windows) or Save (Mac OS).”
Source: https://helpx.adobe.com/indesign/using/exporting-publishing-pdf.html
Convert a PDF to QuarkXPress 2019
Per Quark’s A Guide to QuarkXPress documentation, this is how to “convert existing items to native QuarkXPress objects:
1. Right click on the object and choose Convert To Native Objects from the context menu (or choose Style > Convert to Native Objects). The Convert to Native Objects dialog displays.The image you are attempting to convert must have vector or text components in it. The Convert to Native Objects feature is not supported for Raster only images.
2. Check Retain Source Picture Box to compare the converted objects with the imported source image.
3. Check Ignore Soft Masks to exclude the conversion of soft masks from the source image.
4. Check Ignore Transparent Blend Modes to ignore transparent blends applied to the source image.
5. Check Ignore Profile from Source Colors and the profile embedded with that image in the source file will be ignored. It will be mapped to the QuarkXPress generic profile instead.
6. Check Link Raster Images to save raster images from PDF to the disk as PDF images. For saved projects, the linked images are saved in a folder with the project name added with the image number appended. For unsaved projects it will be created in the temp folder of the OS.
7. Click OK.”
Source: http://www.quark.com/documentation/quarkxpress/2019/english/A%20Guide%20to%20QuarkXPress%202019/_A05DE5A1677E40DFA3F6E6F9B303DD2D_3.html
Save InDesign as IDML for Importing into QuarkXPress 2019

Per Adobe, the following steps outline how to save an InDesign (.indd) document in the InDesign Markup Language (IDML) format. (Once in IDML format, the file can be imported by QuarkXPress 2019.)
“In some cases you may want to save an InDesign in interchange markup format. It’s especially useful to save in this format when you open a QuarkXPress or PageMaker publication in InDesign, when you open a document created in a previous version of InDesign, or when you’re experiencing problems with your document, such as not being able to delete color swatches.
(1) Choose File > Save (CS6) or File > Export (CS5).
(2) From the Save As Type (Windows) or Format (Mac OS) menu, choose InDesign Markup (IDML).
(3) Click Save. You can open the saved IDML file in InDesign CS5 and InDesign CS4 but not in any previous version of InDesign.“
Source: https://helpx.adobe.com/indesign/using/saving-documents.html
Import IDML into QuarkXPress 2019
Per Quark’s QuarkXPress 2019 Guide, here is how to import IDML into QuarkXPress 2019:
“1. Choose New > Project from IDML
2. Select the IDML file in the file system”
Source: http://files.quark.com/download/documentation/QuarkXPress/2019/en/A%20Guide%20to%20QuarkXPress%202019.pdf
Import InDesign into QuarkXPress, without Adobe InDesign or Creative Cloud
Markzware develops preview, preflight, and file conversion software for printers, publishers, graphic artists, and the like. Markzware’s IDMarkz is a multi-featured application that processes Adobe InDesign files for use in numerous file formats on the macOS platform.
The stand-alone IDMarkz app can help you to import InDesign files into QuarkXPress on the macOS platform. This video demonstration walks you through the steps:
IDMarkz Open in Quark (video):
How to Import InDesign Files into QuarkXPress

open InDesign files in earlier Adobe InDesign versions, as well as in
QuarkXPress, Affinity Publisher, Acrobat PDF, and Illustrator .ai formats.
To convert InDesign (as IDML) and open in QuarkXPress 2018 or higher:
• Drag & drop your files onto the IDMarkz window, in the “Drag and drop
files here” section.
• Click on the “Quark” icon in the top of the IDMarkz window.
• Click the “OK” button in the “IDML Import” dialog, which QuarkXPress opens. QuarkXPress will convert the IDML file to QuarkXPress, and the editable file opens in QuarkXPress.

IDMarkz Benefits
• quickly processes InDesign files on a Mac
• offers ease-of-use in a versatile, multi-purpose app
• saves money on Creative Cloud subscriptions
“If you do a conversion from one application to another, the reason why you do it is probably because you want to update the document. … I would accept minor tweaks and touch-up because, in the end, I need to do some other edits to the document, probably in the new software, be it Quark or Affinity Publisher. There are probably other things you want to do with the document. Then, you’re just grateful you can bring most of it over to this new platform. Then, continue from there.”
– Paul Lindström, Technical Editor, Journalist & Consultant, Digital Dots
Source: https://markzware.com/idmarkz/publishing-software-review-digital-dots-prepress-ace-idmarkz-app/

IDMarkz Features include:
• Open InDesign files in earlier InDesign versions or in QuarkXPress, Affinity Publisher, Acrobat, Illustrator, … .
• Open InDesign files in Acrobat, via IDMarkz, and Annotate the PDF.
• Preview InDesign files & export .indd files as IDML, PDF, TIFF, PNG, JPEG, or GIF.

Buy IDMarkz
You can use automation features to export an IDML and open it in QuarkXPress, today! Buy Markzware’s low-cost IDMarkz Mac Subscription (including IDMarkz updates throughout your 12-month subscription term), available on the IDMarkz page. Additional Markzware products are available via the Products page.

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Import InDesign Files into QuarkXPress macOS via PDF, IDML or IDMarkz