Convert images to cmyk
Add 3mm bleed on all edges
We appreciate your deadline is tight so supplying correct artwork means your job can go straight on the press and be delivered when you need it.
File > New > Document
In the box that opens make sure the page size is the same size as you intend your finished print to be. We're not mind readers - if you set your page at A4 but want an A5 booklet either you or us will have to resize the file. We charge a minimum of £25 for this.
Before you leave this box, remember to add 3mm for bleed. Simply type '3 mm' into the Top, Bottom, Inside and Outside boxes. Now when your new file opens there will be an additional 3mm around the edge of the page. When you start designing, your images and background colour should be extended into this area to make the necessary 3mm bleed. (More on this later, I bet you're excited?!).
Window > Colour
Check the Colour Menu to confirm or change this. Click the small arrow in the top right hand corner to change setting.
Now all new text and coloured backgrounds created in your page will be assigned a cmyk value.
Open your images in Photoshop.
Image > Image Size > Resolution : Set to "300"
Save in Photoshop at 300dpi and at least the physical size they will be when printed to ensure images are crisp and not pixelated or out of focus. SO, if your image will fill an A4 page when it's printed it should really be at least A4 in it's original form.
There are plenty of websites providing free high-res images.
Try www.sxc.hu for millions of free images.
PLEASE NOTE: If your images are less than 300dpi at the size they will be printed at then it is not possible to improve the quality. You should either make the images smaller in your book or use higher quality versions.
You decide, but we recommend you always use hires images if possible.
The image on the left here is at 300dpi. The image on the right is only 72dpi. We always preflight every file before going to print and try to advise when you have included lo res images.
Again, you can change this in Photoshop.
Image > Mode > CMYK Color
Images will be RGB when you saved them onto your computer from your camera or the internet. Open them in Photoshop or any other photo editing program and
resave as CMYK.
If you are short on time then there is a quick way round this.
When you export your file to Pdf go to the 'Output' tab in the Export to PDF box. Choose 'Convert to Destination (Preserve Numbers)' and in the Destination box select 'Document CMYK - Coated FOGRA39'. This will convert your whole file to cmyk! If you've got hundreds of images this will save you hours compared to converting them all in Photoshop.
The InDesign Links Menu is a handy and quick way of checking the set up of any images in your artwork.
Window > Links
Notice on the Links Menu (right) our images are 300ppi but their Effective ppi is 475 which means they are being used smaller than the physical size of the image so the quality is even better.
If you are concerned about how some images or colours in your artwork will print then we can run a hard copy proof for a final check. This will add an extra 3 or 4 days to the turnaround so be sure to leave enough time.
This means only one ink colour goes into printing your text. If you make text out of a four colour black the press has to align four colours to make the black text rather than just printing black which will be crisp and in focus.
By adding 30% cyan, magenta and yellow behind your 100% black this will make the black more punchy. Although 0/0/0/100 is great for text is makes the black look flat on larger areas.
‘Bleed’ is the technical term for the area around your
artwork. If you want your images to go right upto the edge of your printed pages then you need to add an extra 3mm on all four edges of your artwork. Without bleed you will be left with an unwanted white border where the image stops.
When designing your file, simply extend any images or background colour beyond the page edge (the pink line) by 3mm like the examples here (There is bleed on the left hand example but not on the right.). Easy!
File > Export > "Enter your chosen file name" > Save
An 'Export Adobe Pdf' box will now appear.
Choose ‘PDF/X-1a:2001’from the top 'Adobe PDF Present' menu.
Scroll down to the 'Marks and Bleeds' menu.
Tick 'Crop Marks’.
Add ‘3mm’ into the four Bleed boxes.
Then click ‘Export’ and your file will be saved as a print ready pdf.
Your exported pdf should look like the example here on the right. The crop marks show where we will trim the print and your image is extended 3mm beyond the marks.
Notice the image stops on the crop marks and doesn’t bleed off the page edge.(Check you typed ‘3mm’ into each of the bleed boxes when you exported to pdf). This will still leave you with an unwanted white border around your pages if our trimming isn't up to NASA standard.
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