Resolution and Larger Vector Size

[lexiemia]

I am trying to use my designs to make t-shirts. However, the website I use is showing that I need a better resolution or larger file size so the print can be clear when printed. I attached my design, please help!!

pineapple aff final.afphoto

[MEB]

Hi lexiemia,

Welcome to Affinity Forums :)

All the adjustments you have made are being applied to an image of a pineapple (the base of your project) with only 742x497 pixels which is quite small to be printed with some quality. There's no vector objects involved here so you can't scale it up without losing quality. You can try to vectorise the image using a third party program (like Inkscape trace feature or SuperVectorizer) or service (like Vector Magic) - Affinity Photo doesn't do this - but again the end result may not be what you are looking for. When working with projects based on images/photography always make sure you start with a high resolution image otherwise you are limiting the output possibilities or sacrificing quality from the start.

[lexiemia]

Oh I see! I guess it may be best to start from scratch to avoid the headache.

 

Thanks so much!!

[MEB]

You may also try to resample the image (you have to export it to a lossless format like TIFF first) using specialised software like Alien Skin Blow Up, SmillaEnlarger (free), On1 Resize (Genuine Fractals) which is software specifically created to upscale raster based images without losing too much quality for print etc.

[toltec]

I am trying to use my designs to make t-shirts. However, the website I use is showing that I need a better resolution or larger file size so the print can be clear when printed. I attached my design, please help!!

 

Do check with your printer but silkscreen printing on a teeshirt will typically be around 50 / 55 lpi (lines per inch). Ideally, you want two pixels for every line, multiplied by the size of the print. Therefore, say your image will be printed at 12" high by 12" wide, you need 1200 pixels by 1200 pixels for 50 lpi at 100 pixels for each inch. Your image is suitable for a size of about 7.5 inches wide by 5 inches high. 

 

I don't know what size the image will be on the shirt but use the above formula. It is always best though to design much higher. If you designed it at 6000 pixels x 6000 pixels Affinity can easily reduce it at the final stage with no loss of quality. Sadly, going up in size never works very well, you will almost certainly be disappointed with the result.

 

Sorry but it would be best to start again at a much higher resolution.