QCAD Bugtracker

QCAD - 2D CAD System.

Click here for a documentation of the DokuWiki formatting syntax that can be used in reports

Please search for existing tasks (also closed ones) before opening a new task.

Please make sure that you are using the latest Version of QCAD before posting a bug (menu Help > Check for Updates)

IDCategory  ascTask TypeSeveritySummaryStatusProgress
1922dwg2bmpFeature RequestVery LowAdd error message when requesting raster for a non-exis...Assigned
Task Description

It would be nice if QCAD spit some kind of warning message when trying to render a layer with a name that doesn’t exist (and perhaps render nothing), rather than silently rendering an empty image. :D

See https://qcad.org/rsforum/viewtopic.php?f=33&t=6453

1888dwg2bmpFeature RequestLowAdd support to disable hatch rendering on "dwg2bmp"Assigned
1 Task Description


A friendly request to add an option to disable hatch rendering on “dwg2bmp” conversions.

Depending on the nature of the conversion and the density of the hatch, this may render unintelligible images (see attachments). The option could look like “-t, -nohatch” to indicate hatches should be hidden before rendering. This could potentially become an option too for “dwg2svg” or “dwg2pdf.”

Amazing product, thank you so much!

1887dwg2bmpFeature RequestLowAdd "-max-lineweight" option for dwg2bmpAssigned
2 Task Description

Hi there,

A friendly request to add the option to set a maximum lineweight for raster conversions via dwg2bmp.

Depending on the LW configuration of the CAD file, rasterization operations sometimes yield terrible results (see attachment). This would also mirror the similar “-min-lineweight” options available on “dwg2svg” and “dwg2pdf” (although not on “dwg2bmp”).

See also: https://qcad.org/rsforum/viewtopic.php?f=32&t=6298


1961dwg2pdfBug ReportLowToo many drawings are missingAssigned
Task Description

Hello, I found a bug.

Original file: 006–【武汉会展中心店】一层合用前室.dwg

Converted file: 006–【武汉会展中心店】一层合用前室.pdf

Command line: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 -block=布局1 path

Bug description file: problem8.png

As you see. I use dwg2pdf to export the block named “布局1”. There are too many drawings missing.

1960dwg2pdfBug ReportLowdwg2pdf command failAssigned
Task Description

Good afternoon, I found a bug.

Source file: B5.dwg.

Command line: .\dwg2pdf.bat -f -a -recompute-dim -ltscale=1 -font-substitution Standard GBK path

After I used the command, the message “Warning: standard font not found” occured. And B5.pdf is not found.
Convert is fail.

1824dwg2pdfFeature RequestLowdwg2pdf does not obey frozen layers in paper-space view...Assigned
Task Description

We currently have a paper-space using two viewports with different layers from the model-space frozen. Unfortunately in the pdf output the layers which are frozen show up.
dwg2pdf should obey the specific frozen layer for each viewport

1823dwg2pdfFeature RequestLowplotting error to pdf a Dwg where the view port is not ...Assigned
Task Description

When trying to plot a dwg or a dxf to pdf where the viewport is orientated to a different angle than north up
the data in the view port is plotted north up.
see attached DWG and pdf for clarification.

1700dwg2pdfFeature RequestLowdwg2pdf: output multiple layoutsAssigned
Task Description

Add support to specify multiple blocks (layouts) to output (one per page).

1021dwg2pdfFeature RequestLowdwg2pdf: switch to set block to exportAssigned
1 Task Description

Add a command line switch to dwg2pdf to export a given block instead of “*Model_Space”.

1542dwg2svgFeature RequestLowdwg2svg: add switch to show only given layer(s)Assigned
Task Description

Implement a command line switch to only show a list of given layers for dwg2* command line tools.

1506dxflibFeature RequestLowwriteVPort parametersAssigned
Task Description

Add parameters to the function DL_Dxf::writeVPort.
This way users will be able to specify the desired viewport.

Is the github the official repository? Are pull requests sent there accepted?

1203dxflibBug ReportLowImages not saved (dxflib)Assigned
Task Description

I am doing a bit of landscaping and using a (big) ortophoto as one of my layers in order to sanity-check on the ground measurements.

The layer contains a point and the image and nothing else.

The image is a 8MB file: “PNG image data, 4200 x 2980, 8-bit/color RGB, non-interlaced” and it is scaled to 210 coordinate units (meter) horizontally in the drawing.

With approx 50% probability the image disappears during Save, as see for instance in this diff of the DXF file:

      @@ -158699,28 +153057,6 @@ AcDbXrecord
      -  5
      - 90
      -  1
      - 10
      - 20
      - 11
      - 21
      -  0

The point in the same layer does not similarly disappear, the bug only seems to affect images.

I have seen this bug from version to git as of yesterday (63e06c778926a803bdfbffdf27b8c24d41511072).

I have not been able to correlate the bug with anything.

Looking closer at the DXF file (attached), there seems to be some residuce of attempts to insert images in protected/invisible layers, so this may be some kind of refcounting issue.

(Any chance of getting FreeBSD into the “Operating System” field ?)

976dxflibBug ReportLowDXF import errors related to hatches, textsAssigned
Task Description


1863ECMAScriptFeature RequestLowWidgetFactory.saveState: save state of checkable QGroup...Assigned
Task Description

QGroupBox widgets with <property name=”checkable”> are not saved in Qcad3.conf

1999QCAD (main)Feature RequestLowViewport: Add additional properties for controlling dim...Assigned
1 Task Description

When working with multiple Viewports with different scale it could be very useful to have extra properties controlling how dimensions are rendered in the viewport:

E.g an extra “Dimension Scale” under “Scale” in the Viewport selection’s ‘Specific Properties’ section, could allow having the same size when printed.
This Dimension Scale would be multiplied on top of the Scale value, but only for Dimensions rendering.

Toggle button for hiding any dimensions in the Viewport. Maybe this should be controlled by being able to specify a Layer that should be hidden in this Viewport only, then I could select my Dimensions layer here.

The Viewport properties:

1983QCAD (main)Feature RequestLowTrim All or Bulk Break outAssigned
1 Task Description

This is a trim method I am missing in Qcad.

20 years ago it existed in CadKey.
You had a bunch of lines or segments.
You defined a (new) line or segment as cutter.
‘Trim All’.
You pointed at the side of the cutter entity to trim all intersecting at that side.

Pritty the same as in this topic:

Only in rare cases I can use Husky’s workaround as pro.
It all depends on what else is in the clipping rectangle that is needed to trim all intended.
If of no use all single crossing entities have to be chosen one by one.


1982QCAD (main)Feature RequestLowmeasure DIN 1356Assigned
Task Description

To measure in the format DIN 1356 , Architect
It is hard work to do this manual input with meta characters.

1977QCAD (main)Feature RequestLowCorresponding coordinate format Assigned
Task Description


It would be less confusing to read messages in the command line protocol if it would use the same coordinate separators like the settings below Application Preferences / General / Coordinate Format.

This example shows the “Absolute Cartesian Coordinate” but of course all corresponding format settings should be used within messages.

Absolute Cartesian Coordinate: Setting = semicolon (;) but the message will use division (/).

1976QCAD (main)Feature RequestLowEnvelope at offset to a poly toolAssigned
Task Description


1974QCAD (main)Bug ReportVery LowFile > Print Preview: Cannot move paper in new drawingUnconfirmed
Task Description

Yesterday I set up a Windows 64 bit install of QCAD Pro which shows the same bug I have been seeing for a while in the Community linux git repo.

Create a new drawing and then go to “Print preview”. Enable “Move paper postion”, the cursor changes to the hand icon, but the paper position is unable to be moved. Only by saving the drawing, exiting the program, restarting and reopening the drawing, will the “Move paper postion” function correctly.

Affected versions tested:

Windows 64bit installer download, as of yesterday.
Linux 64bit build from git, about 20minutes ago.

For what it’s worth, this bug is not present in this previous git checkout:

Version: (3.21.1)
Build Date:
Jul 2 2018

Qt Version:
gcc 6.3.1

Thanks for a great product.

1972QCAD (main)Bug ReportLowHatch import fails for boundaries with many very small ...Assigned
Task Description

See also:

1936QCAD (main)Bug ReportLowver 3.23 not saving font informationAssigned
Task Description

The attached file is not saving font preference.
All fonts on the online layer are reported as the standard font. If I highlight one or all of the text entities and change the font to something like Yu gothic light, the property page reports yu gothic light and the screen reflects the changed font.
If I save, close and reload, the fonts for all text is again “standard”.

So then I try to enter new text via the “A” draw text command icon. I select “Broadway.ttf” as the main font in the text entry dialog.
One word “Broadway” is entered as the text. it appears on the upper left of the screen as expected and the font name is Broadway in the property editor. If I look at the dxf file source there is a whole bunch of text styles.
I save and close the file, and then open it again. Now the word Broadway has changed to font name “standard” in the property editor and is very definitely not the Broadway.ttf font.

I am not the originator of the file, I am just trying to change the font. If I start a new file and enter new text the font saves just fine, so I am thinking it is a setting somewhere, but I am unable to find it.

We (me and my customers) use these files for engraving so exact font is critical.

1934QCAD (main)Feature RequestLowDiametric text - overlaidAssigned
Task Description

Diametric text is always placed above a horizontal measurement.

I often want to indicate both the inside and outside diameter of an object e.g. a wheel using diametric text. The text is overlaid and illegible.

To avoid text overlapping, I use Horizontal Aligned because I can control the position of the text to avoid illegible text.

A better method would be to alternate the placement of diametric text (alternatively) above and below a measurement so that in the majority of cases an overlap would be avoided.

Similarly for a vertical measurement, the text is overlaid and illegible.

When the angle is almost vertical, the angle controls the side the text appears however it also reverses the direction of the text (which is logical but not attractive).

Kind regards

1933QCAD (main)Bug ReportLowAdvanced SVG export file overwrite check doesn't use up...Assigned
Task Description

In the Advance SVG Export dialog, when I edit the filename to be different than the default file that already exists and then clear the checkbox for “Overwrite existing file without asking” just to make sure that I haven’t already created a file with the modified name as well, then I get a popup warning that the export would overwrite the default filename, not the name as edited. In other words, the overwrite check ignored the fact that I edited the filename.

Observed on MacOS Mojave (10.14), but probably applies to all.

1930QCAD (main)Feature RequestLowOption disable "Auto Zoom on load" for saved "Layout Vi...Assigned
Task Description


my setting for “Auto Zoom on load” is checked to on. That works perfect for me for most of my drawings.

But if I save a drawing with Layout Viewports then I have to adjust every Viewport again after loading.

Would it be possible to have an option below Application Preferences / Graphics View / Appearance / Auto Zoom on load / ON which excludes drawings saved with Layout Viewports?

1928QCAD (main)Feature RequestLowOptionnally 'Auto clean up' after generation of NaN / N...Assigned
1 Task Description

Some functions / methods can generate some sort off entity or part with NaN / Null / Null-lenght ... props.
Some explicitly don’t and test their actions with isNull().

As these serve a purpose in some processes, trails of them can be part of the results.
For some users Null / Null-lenght are meaningfull, for other users these produce errors down the line.
In a few cases its a desirable feature eg. controlpoint spline.
(Allthough there are no Null props involved with equal successively controlpoints)

Many problem post on the forum are related to Null - Zero and so on.

In some cases it can’t be undone by re-editing the drawing.

If it can’t be undone by Undo/Redo it is a bug.

In some cases there is a difference noticed after file save-close-open.

1926QCAD (main)Feature RequestLowNo negative coordinate values ? (DO command)Assigned
1 Task Description

Just starting with QCAD, for some hours now - really excellent user interface (compared to other low budget CADs, like DCAD, or BeckerCAD...) !

Surprisingly, point coordinates - entered via the command line, and shown with correct positions on the drawing- are not displayed correctly with the ‘dimordinate’ (DO) command.
There are no negative values, even when the center point (0;0) is right in the middle of the drawing, so points left and below should have !


1924QCAD (main)Bug ReportLowSweepAngle = 0Assigned
Task Description

Win7pro 32bit Wininstaller Qcadpro 3.23.0

Draw an arc.
Select the arc.
In Property Editor:
Set start angle to 135
Set end angle to 135

SweepAngle = */-360

edit the end angle and add “+360”, hit enter

SweepAngle = 0

An arc with zero sweep is a point.
A point is not an arc.
With the same start and end parameter an arc should have a sweep of +/-360.
As for entries by points or by angles.


1923QCAD (main)Bug ReportVery LowFaulty rendering Polylines with Global/Local Widths and...Assigned
Task Description

Win7pro 32bit Qcad 3.23.0

The Arc segments of Polylines with Global or any Local Width render faulty where Global Z or any of the arc’s local Z is not zero.

In the attached drawing setting the Global Z of the inner poly to 5,10,...

The setting of Z to not zero affects the radius of the projected arc and not the bulging of the poly.
It also affects the projected widths of the line inversely, but not by changing the widths properties.

Pritty rare combination! True.
Qcad is 2D native! True.

Flatten will resolve this.

It is not a purely visual rendering fault, the poly will explode as such.

Maybe similar flaw as with uneven scaling blocks with arcs.


1920QCAD (main)Feature RequestVery LowEdit > Application Preferences: Add preference to disab...Assigned
Task Description

See also:

1919QCAD (main)Bug ReportVery LowWrong order XY(Z) for Ordinate Dimension in property ed...Assigned
Task Description

Win7pro Qcad Pro

In property editor
properties of an Ordinate Dimension

Without Show Z
DefPoint is displayed in order YX?

With Show Z
Origin is displayed in order XZY?
DefPoint is displayed in order YZX?
LeaderEndPoint is displayed in order ZXY?


1917QCAD (main)Feature RequestLowAutomatic labels with static information of the drawingAssigned
Task Description

I would like static information of the drawing (like scale, creation-date, modified-date, revision etc) to be available as automatic labels to be placed in the drawing (with selectable style, font etc)

This would greatly simplify the creatin of title sections in the drawing and making sure it is consistent with the actual drawing and not requiring manual “synchronization”.

1916QCAD (main)Bug ReportLowMoving an object in an angled viewport with mouse does ...Assigned
Task Description

To reproduce

1. Select a new view-port in model-space
2. Select the appropriate paper-space
3. When the paper space opens change the angle of the viewport to 90 degrees
4. Place view-port in paper space
5. Select the view-port in paper-space by clicking it
6. Try to move the object itself in the view-port (by clicking the “top” dot) to the right by moving the mouse to the right while holding the left mouse-button.


The object in the viewport moves down vertically NOT to the right


The object moves to the right

(It seems mouse movement does not compensate for the rotated angle of the viewport)


None, except compensate for the angle in your head and moving the mouse the “wrong” way when correcting the placement of objects in the view-port

1915QCAD (main)SuggestionLowViewport does not rotate view-port when changed in pape...Assigned
Task Description

To reproduce

1. Select a new view-port in model-space
2. Select the appropriate paper-space
3. When the paper space opens change the angle of the viewport.


The object in the viewport changes but the viewport itself remains unchanged


That both the view-port and the object changes angle as the angle is updated


If you abort the placement (but keep the angle) and go back to model-space and then redo the operation the view-port is rotated along the angle. It seems that the viewport only picks up the initial angle once the paper-space is open and ignores any changes thereafter


1. Select the view-port per normal in model-space
2. Open the paper-space and set the wanted angle but do not place the view-port in paper space
3. Abort the placement on paper-space and redo the whole operation

Once the paper space is opened again the view-port will have the chosen angle

1905QCAD (main)Bug ReportVery LowView > Property Editor: Changing attribute of block cha...Assigned
Task Description

See also:

1903QCAD (main)Feature RequestLowSaving layer settings, e.g. visibility status, associat...Assigned
Task Description

In a medium complex drawing it may be too much details to have all layers in a drawing visible at once.

Instead a number of views would be created that saves not only zoom level and position but also what layers are visible and not (as appropriate for the purpose of that particular view). This is very cumbersome (to the extent it is not really realistic) to achieve today and requires a lot of duplication of both model and layers.

The advantage of adding this is the ability to have only one model (with multiple views) and avoid duplication of work and the risk of inconsistency inherent with many copies of the model.

As a further (and natural extension to this) would be the ability to used this functionality with view-ports to be able to create (possibly many) paper-spaces from a single model. This would however require view-ports to be aware of what view they are a window into. A single change in the model would then propagate to all defined view-ports and paper-spaces.

1900QCAD (main)Bug ReportVery LowRemote shares initially not accessible.Assigned
Task Description

My data files are stored on network shares (synology) with a GB link. QCAD Pro is run in Admin mode.

While in my Windows browser all remote shares are accessible (Green), in the QCAD file open menu they are initially shown as not accessible (Red). By accessing a specific drawing file in a remote share, the share will open and turn green.

Same behavior using ‘Open recent’. Always the message is given that the requested file does not exist, and the file is wiped from the ‘Recent Open’ list. Only if the share is first accessed through ‘Open’ with a random file, it will turn and a ‘recent open’ file for that share will open.

Drag and Drop from a remote share will never work.

1895QCAD (main)Feature RequestLowAdd support for block transformation matricesAssigned
Task Description

Support transformations by transformation matrix for block references.

See also:

1890QCAD (main)Feature RequestLowPossibility to address an QCAD extern font folderAssigned
Task Description

Like the Library Browser it would be nice to be able to define a extern font source folder. Especially now after we are able to create our own cxf fonts with QCAD. :-)

The reason is the same why we have it already for the library - without it we have to copy our individual fonts manually every time after a QCAD update to use them uninterrupted for existing and new drawings.

1886QCAD (main)Feature RequestLowSupport advanced tolerance settings for dimensionsAssigned
1 Task Description

Add support for
- tolerance display (dimtol)
- upper limit (dimtp)
- lower limit (dimtm)
- tolerance precision (dimtdec)
- tolerance text size factor (dimtfac)
- tolerance suppress zeros, etc.

See also:

1878QCAD (main)Feature RequestLowSnap > Distances from 2 Points: snap to point with give...Assigned
Task Description

See also:

1870QCAD (main)Feature RequestLow Stretch tool / option to turn selection restriction on...Assigned
Task Description


since 3.19.2 the Stretch tool looks for any selection and follows the specification “Only stretch selected entities if there is a selection”.

That is a nice feature but it leads many times to confusing because I have to deselect a selection just because I need to use the stretch tool on something else on the fly. The same if I “forgot” a selection outside of my zoom which is still important for me. The stretch tool just won’t work without any message why not. My routine now is that I terminate every selection just before I use the stretch tool just not to be surprised by “why isn’t it working”?

It would be nice to have in the Stretch option bar a checkbox to turn the “only selection feature” on or off. QCAD should remember that setting.

1858QCAD (main)Feature RequestLowEnter measurements from drawing into line inputsAssigned
Task Description

Add option to line input context menu to enter a distance from the drawing, measured from two points.
Perhaps existing measuring tools can be re-used to feedback values into line edits to avoid duplication.

See also:

1851QCAD (main)SuggestionLowLateral surface of a coneAssigned
Task Description

Module mise à plat d’un cone


Serait il possible dans un futur d’ajouter un module de mise en plan de cone.

Une petite fenêtre sur lequel on donne par exemple :
1- Ø haut
2- angle de coupe du haut
3- hauteur du cône
4- Ø bas
5- angle du bas
6- épaisseur matière

Ce qui permettrai de sortir une mise en plan a plat de la forme

1838QCAD (main)Feature RequestLowCarbide Create importAssigned
Task Description

Add support for importing Carbide Create files (.c2d).

Format is JSON based, human readable.

1837QCAD (main)Feature RequestLowLine bisector toolAssigned
Task Description


we have already this nice tool “Angle bisector”.

I would really appreciate if we could get the same function for parallel lines to place a line exactly in the center of both lines.


1836QCAD (main)Feature RequestLowOffset for paste along entityAssigned
Task Description

add a new parameter “offset” in the dialog “Paste along entity”

see https://www.qcad.org/rsforum/viewtopic.php?f=31&t=5929&p=22307#p22307

1833QCAD (main)Feature RequestLowDeep synchronize attributes featureAssigned
1 Task Description

There is the Synchronize attributes feature which works well. But It affects only block references in the active layout(modelspace, block layout). If I want to synchronize attributes of block references in in another blocks, i have to manually go through all blocks and run synchronize attributes feature. That is the reason I would like to modify Synchronize attributes feature to affect all block references in a drawing, or add new Deep synchronize attributes feature.

1827QCAD (main)Feature RequestLowProperty Editor: Accept advanced scale expressions for ...Assigned
Task Description


Identical scale expression used in Print Preview like 5:1, 5/1, 5”=1”, 5 are working flawless like expected.
Same expression used in a Viewport scale leads to different outcomes.

The Property Editor used to fix that in Paper_Space does also not accept those standard expressions.

1826QCAD (main)Feature RequestLowguide lines when extending lines Assigned
Task Description

When using the SHIFT key while dragging the end point a perpendicular guide line is displayed (see attached screenshot).
It would be very helpful if other guide lines with x=const. and y= const. are displayed when pressing SHIFT + ALT key together while dragging.

Showing tasks 1 - 50 of 382 Page 1 of 81 - 2 - 3 - 4 - 5 - Last >>

Available keyboard shortcuts


Task Details

Task Editing