How to use all 12 Preptika Web Tools step by step.
Drop your PDF document into the designated upload area.
The tool automatically scans 11 critical points (color profiles, non-outlined fonts, suspect overprint elements, etc.).
Read the detailed and straightforward report of errors that could cause print rejections.
Drag and drop your PDF or image into the tool.
The algorithm checks the pixels per inch (DPI) density of every image and vector graphic.
View an interactive heatmap showing exactly which areas are low-resolution and could print blurry.
Type the target URL or text you want to encode inside the QR Code.
Configure the output size for your page layout.
Download the QR Code in vector format or high-definition in pure black (100% K) to guarantee it doesn't smudge during printing.
Enter the total page count of your booklet or book.
Select a preset paper type or enter your paper's caliper (volume) manually in custom mode.
The exact spine width needed for your cover artwork is calculated in real-time in millimeters.
Choose the PDF artwork file you want to check.
The tool calculates the Total Area Coverage (CMYK) to ensure it stays below printer safety thresholds (typically 300%).
View a mapping of high ink density zones to correct your color mix before printing.
Select your oversized PDF document.
Select the level of file size reduction desired.
The tool compresses image streams while preserving optimal resolution and metadata required for printing.
Choose the separate PDF documents you want to combine.
Drag and drop the thumbnails to arrange the exact page sequence.
Confirm to instantly merge them into a single, clean PDF.
Select an image or a PDF that is set in the RGB screen profile.
Drag the slider back and forth to compare color differences.
See exactly how bright RGB colors convert and appear in CMYK print inks (e.g. FOGRA39).
Import your PDF file with mismatched page dimensions.
Select a standard finished size (A3, A4, A5, Letter...) or enter custom dimensions in mm.
Download the document resized to fit your selected format.
Select a PDF containing incorrect printer marks, bleed lines, or unnecessary metadata.
The tool cleans out extraneous data and trims elements extending beyond the safety box.
Download a pristine file, ready to be incorporated in your designs.
Import your design layout that might contain Pantone spot inks.
The tracker scans the file to locate all custom spot channels.
Spot colors are rendered in high-visibility neon colors on screen, making them easy to track before plate creation.
Select your PDF which is trimmed tight with no safety margin.
Enter the required bleed margin (typically 2 mm or 3 mm).
The tool extends the artwork by mirroring the border pixels and adds standard crop marks.
Your files and designs belong to you alone. All documents uploaded to Preptika Web Tools are processed entirely in-memory. No files are stored long-term, resold, or used for AI training. They are permanently deleted from our secure servers as soon as processing is complete.
All token purchases are handled end-to-end by our PCI-DSS compliant Merchant of Record, Lemon Squeezy. No credit card details transit or are stored on our servers. Your purchased credits are immediately available on your user dashboard.
The most common reasons for rejection are missing bleed zones (which can leave white edges after trimming), thin text styled in rich black (which smudges due to plate misalignment), or ink coverage (TAC) exceeding standard limits (preventing paper drying). Preptika corrects these issues automatically.
Our Windows desktop apps (available on the Microsoft Store) do all processing locally on your computer without transmitting any data. Our **Web Tools** (SaaS) process files on secure servers with zero retention, and can be accessed from any operating system (Mac, Linux, iPad) directly in your browser.
If your PDF fails to process, verify that it isn't password protected and that it opens normally in a PDF reader. If the problem persists, please get in touch with us through our contact form so our prepress team can look into it.