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I want to divide a country into a grid of maps that will be of 1:25000 scale. I am not sure how to approach this. Create fishnet seems like a good ending point. I have some old maps of the given scale.

Do I just create a template A4 outline and multiply that?

I also need to think about the corners and such, to extend the maps that fall outside of the country and make the extended blank (white). These old maps that I have cover approximately 10km x 14km and are A4.

Should I follow this or?

Basically, I want to subdivide the country into regions of the same size and scale 1:25000.

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    What is you next step, create PDFs? Use Data Driven Pages with your fishnet as index layer. Try different fishnet sizes and set scale at 1:25000 until you get enough overlap etc – BERA Aug 7 at 18:20
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You can accomplish this using a combination of a Grid Index and Data Driven Pages to divide your country into a grid, and a Multiple Ring Buffer to provide a white background outside the country's border.

The following assumes that you have a polygon feature describing the country's border. The one I've used here is not a 100% perfect fit, but it will give you an idea of the technique.

  1. In the Grid Index Features tool, specify the country border feature as your Input Features. Choose a Polygon Width of about 7000m and a Height of about 4800m (these will give you about 1:25000 scale on A4 paper).

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  1. This will produce a grid covering the extent of the country's border.

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  1. In the Layout view, right-click the page, choose Page and Print Setup, and set your paper to A4. In the main toolbar, set your scale to 1:25000. Optionally, you can uncheck the grid index layer so it's not visible (I've left it on for clarity).

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  1. From the Data Driven Pages toolbar, choose Set Up Data Driven Pages. On the Definition tab, choose Enable Data Driven Pages. Set your Layer to be the grid index features you created above.

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  1. On the Extent tab, choose Center and Maintain Current Scale.

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  1. To create a white background, choose the Multiple Ring Buffer tool. Set your Input Features to be the country border. Set the Distance to be 20000m (or another distance of your choice, depending on the size of your grid). Choose Outside Polygons Only to avoid covering the country feature itself.

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  1. This creates a buffer feature to serve as a background. Notice that by choosing a buffer size larger than our grid size, the background will fill the borders of any given output page.

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  1. When you are ready to output your file, choose File/ Export Map... Choose Save as type = PDF. On the Pages tab, choose the appropriate page range(s).

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