PressLens: Print Preflight
Inspect Bleed, Boxes & Color
$3.99 · Designed for iPad. Not verified for macOS.
Check bleed, page boxes, fonts, image resolution and color in any print PDF – on device, with five print profiles, page-box fixes and shareable reports.
PressLens checks a print PDF before you send it to the printer – on your iPhone or iPad, without uploading it anywhere.
Open a PDF from Files, Mail or the share sheet and PressLens reads the file's real structure: the page boxes on every page, how much bleed actually sits outside the trim, which fonts are embedded, the printed resolution of every placed image, the color spaces in use (RGB, CMYK, gray, spot colors), output intents, transparency, overprint and hairlines. Each check is graded against the print profile you choose, and you get a clear verdict: Ready for handoff, Needs review, or Fix before sending.
WHAT IT CHECKS
- TrimBox, BleedBox, CropBox, MediaBox and ArtBox read from the page dictionary, including inherited and defaulted boxes
- Bleed measured on all four sides of every page, in millimeters
- Page-size consistency, with A-series, US and common card sizes named
- Effective image resolution at the printed size, following scaling and nested forms
- Font embedding and subsets, with every font listed by page
- RGB, CMYK, gray, Lab, ICC-based and spot colors, with spot ink names
- Output intents and PDF/X declarations
- Transparency (soft masks, opacity, blend modes, groups) and overprint
- Strokes thinner than your minimum line weight, including zero-width hairlines
- Encryption, rotation and annotations
PROFILES
Five built-in profiles: Offset – sheetfed, US commercial (1/8 in bleed), Digital press, PDF/X-1a style and Large format & signage. Change any setting and save your own profile.
SEE EVERY PAGE
The Pages view renders each page with its trim and bleed boxes drawn to scale, and every page has a detailed box table.
FIX PAGE BOXES
Got a PDF exported with bleed but no trim box? PressLens writes a corrected copy with proper TrimBox and BleedBox values, re-checks it, and lets you share it. Your original file is never changed.
REPORTS AND HISTORY
Share a paginated PDF preflight report, a CSV table or JSON. Every file you check is kept in History on your device so you can re-check it against another profile.
SHORTCUTS AND FILES
Use the "Preflight PDF" action in Shortcuts, or choose PressLens from the share sheet in Files and Mail.
EVERYTHING INCLUDED
One purchase, no subscription. No account, no ads, no analytics, no network connections.
WHAT IT DOES NOT DO
PressLens reads the PDF's structure. It does not render separations, measure total ink coverage, check trapping, certify PDF/X compliance, or judge whether your artwork really extends into the bleed. Always confirm your printer's specifications.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
PressLens 2.0 is a rebuilt preflight engine that inspects your PDF's real structure:
- Page boxes and bleed measured from each page dictionary
- Effective image resolution at printed size
- Font embedding, color spaces, spot colors, output intents, transparency, overprint and hairlines
- Five print profiles plus your own
- Fix page boxes into a corrected copy
- PDF, CSV and JSON reports, and a History of every file you check
- Shortcuts action and Open in PressLens from Files and Mail
- New system tab bar, better contrast and iPad layouts
- Removed the bundled image library and the generated practice workspace; the sample file is now a real PDF the app generates and inspects.
The developer, Robert Corbin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Robert Corbin
- Size
- 3.4 MB
- Category
- Graphics & Design
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Robert Corbin

