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Version 3.75                     Last Updated 2 Apr 2022                        Difficulty level:     Moderate

Section Links (this page):     What is AFR?     Layout Guides     Design with the form resizer     Set default form size     Summary/Review

What is automatic form resizing and why is it useful?                                                             Return To Top

If all your applications will only be used with the same monitor and resolution, there is no benefit in using automatic form resizing.
However if you are designing applications for use with a variety of different display options, it may be exactly the solution you need

Most developers will be aware that forms designed for a specific screen size/resolution may look dreadful on a different monitor with a higher/lower resolution and/or screen size or shape (form factor = 4:3, 16:9 or widescreen)

For example, this form was designed at a low resolution (800*600):


If it is viewed at a higher resolution (1680*1020), it only fills part of the screen and each item is tiny.
This is the result using overlapping windows


Using tabbed documents, the screen is filled but the contents remain squashed in the top left corner


On a smaller screen or lower resolution, the opposite problem occurs with part of the form not shown unless the user scrolls in both directions


The effect is the same whether using overlapping windows or tabbed documents.
So what solutions exist?

Layout Guides and Anchoring                                                                                           Return To Top

Layout guides were added in Access 2007 to help developers create consistent form layouts by grouping controls together.

Some developers find layout guides useful to some extent in managing issues with different screen sizes and resolutions
For example, a stacked layout has been used for these controls. All controls in the group are automatically made the same width.


In addition anchoring can be used to adjust the position/size on the screen.
There are 9 different anchoring options available. In this case Stretch Down and Across anchoring has been applied


The results can be quite successful for simple form layouts.
However, that isn’t necessarily the case for more complex form designs. For example, extra controls have been added in design view:


Depending on the anchoring choices, this may result in this layout (with lots of empty space on the left)


Or another variation - in this case with various controls overlapping / obscured  … etc


With care and practice, reasonable results can still be obtained. However, the process is far from intuitive.
The main issue with this approach is that users do not have full control over positioning and size of each control on the form.

Automatic form resizing code is designed to fix all such issues.
Forms can be automatically resized for any screen size & resolution whilst allowing developers full control over the form layout and appearance.

There are various examples available including commercial packages such as:
1.   Shrinker Stretcher available from
2.   Total Access Components from

However, for many years, I have used a modified version of free open source code by Jamie Czernik originally written in 2003. The original code is still available at though many improvements have since been added by myself and other developers.

This is an identical form to that shown earlier in this article, designed at 800*600 but with form resizing code added.

Firstly, here is the form viewed at a resolution of 1024*768


And again at a resolution of 1440*900


And yet again at a resolution of 1680*1050


As you can see the entire form is shown whatever resolution is used as long as that is the same as or higher than the ‘design resolution’.
The code intelligently enlarges the form itself to fit the screen and moves each control by an appropriate amount to keep the form in proportion.
It also enlarges each control proportionately together with the contents of that control.

The code works for each type of control including subforms

1.  The code has been extensively tested with many clients and applications over a period of 17 years.
    It has been used with a wide range of monitors, scaling factors, form factors (screen shapes & resolutions) including 22 inch widescreen, 14 inch 16:9, 15 inch 4:3
    and a 10 inch 16:9 tablet

2.  When using a maximised form as above, some 'empty space' may be left on the right of the screen.
    This is to allow for different form factors such as 4:3, 5:4, 16:9, 16:10, widescreen  

So what code is needed to work this magic? Just one line in the Form_Load event: ResizeForm Me


OK, I hear you say, surely that can't be all there is to it!   Well not quite...!

Behind the scenes there is a lengthy module modResizeForm which contains all the code required to adjust the forms as required.
This code module is included with the attached example application and has been updated to work in both 32-bit and 64-bit Access.

If you import the module to your own applications and add the above line in the Form_Load events, all forms and their controls will be resized.
However, the results will not be at all successful at first unless the forms were designed with resizing in mind!

It is STRONGLY recommended that you start with new forms and plan for resizing from the start.

Designing with the form resizer                                                                                           Return To Top

As a general rule, you always need to develop using the lowest resolution that your users are likely to have./span>.
Form resizing upwards (stretching) is much easier and has far fewer issues than resizing downwards (shrinking).

The declarations section of the modResizeForm module includes the following lines:


The first line is the default or baseline horizontal resolution - in this case 800
You can adjust this to any other suitable minimum value such as 1024 or 1280 if you prefer

The next line is the baseline vertical resolution - 600
This can also be amended to suit, but in the current version of the code this is NOT used & can be disabled

The third line is the pixels per inch setting which is normally 96 for 100%
NOTE: if the screen scaling is magnified to e.g. 125% this value becomes 120 ppi. The code still works perfectly.

Setting the default form size                                                                                               Return To Top

The code currently specifies a 'base resolution' of 800*600 though that can be changed to any resolution that suits your needs.
However I certainly don't develop in that resolution. My primary monitor is in fact 1680*1050 and my secondary monitor is 1920*1080.

What it actually means is that my base form size in design view is such that if I did use 800*600, it would fill the screen.
By experiment, I found that size should be approximately 20.5cm*12.5cm.

So my forms are designed in that size & will scale up to 'fill the screen' in any other higher resolution
More accurately it will fill the total height of the screen.

Due to different form factors (4:3, 5:4, 16:9, 16:10 etc) the form may be slightly less than the total monitor width.
Whilst I could also use code to stretch it to fit horizontally, there would be some distortion by doing so
Alternatively you could increase the default width of your forms in design view

I also design with default font = Calibri 7pt which after resizing becomes Calibri 11pt

I could also change the base resolution to say 1024*768 and if I did so, the base form size would be proportionately larger (25.85*17.2 cm approx)and the font size would be 9pt in design view. However, it would scale up from that equally well.

NOTE: You may wish to adjust the default width if, for example, all users have monitors with widescreen form factor.

You may also need to adapt the specified sizes slightly if you normally do any of the following:
a)    Set ribbon and / or navigation pane maximised
b)    Design forms with no header / footer section
c)    Use tabbed documents instead of overlapping windows
d)    Use popup forms

The attached application includes three example template forms (800x600, 1024x768 and 1366x768).
These may be useful to set maximum form sizes to ensure they fit properly in different screen resolutions and form factors.

800*600 template (form factor = 4:3)


1024*768 template  (form factor = 4:3)


It is useful to place a transparent box control over each section of the form to mark out the correct size required.
The box should be equal to the width and height of that section.

This will be useful if you need to restore the original size after making any temporary changes in form layout / size

Downloads / Links                                                                                                     Return To Top

Click the links to download various items related to this topic:

1.   The original auto form resize utility by Jamie Czernik - (MDB zipped)

2.   The example application referenced in this article - (ACCDB file zipped)

3.   The complete article as a PDF document - ResizeForm Me.pdf (PDF zipped)

4.   I ran a session on Automatic Form Resizing for the US Lunchtime Access User Group on 28 Sept 2021.
      The video is available on You Tube at: or you can click on the video below.


      Many thanks to Crystal Long (MVP) for the considerable time she spent expertly editing the video recording of this session.

      More recently, I have done updated versions of the same presentation for the UK Access User Group on 8 Feb 2022 and again for the Denver Area Access
      User Group on 17 Feb 2022. The updated presentation also included the use of AFR with datasheet forms and navigation forms

      The video of the Denver Area AUG session is now available on You Tube at:

Summary / Review                                                                                                   Return To Top

The first part of this article has discussed the benefits of automatic form resizing as well as an alternative approach based on the use of the built in layout guides and anchoring.

The second part of the article adds an optional zoom feature to Access forms - this can be very useful for those with less than perfect eyesight.
This section also covers some potential issues you may experience and possible solutions for each of these.

The third part of the article will explain how the resizing code works and provide tips for using the code most effectively in your own applications.

I would be grateful for any feedback on this article including details of any errors or omissions

If you have any comments or questions, please contact me using the feedback form below or send me an email

Colin Riddington      Mendip Data Systems         Last Updated 2 Apr 2022

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