Quicklinks: acrobat-settings, acrobat-preflight, acrobat-output-preview,
 indesign-link-info, pitstop-preflight-profile

We only accept standard PDF/X-1a compilant files.

Review with Adobe Acrobat Professional your PDF files before sending.

Correct your settings in Adobe Acrobat

Please see this guide how to configure "Show trim boxes" for seeing missing bleed issues.
Read more about PDF page boxes (

Please see this guide how to configure "Overprint preview" for seeing faulty overprint problems.

Preflight your PDF in Adobe Acrobat

Acrobat: Preflight your PDF with tool Preflight (
The suitable preflight profiles are Prepress - Sheetfed (CMYK) and Web offset (heatset, CMYK).

More about preflighting:

10 reasons why should preflight:

Preview and check your PDF files before submitting

Acrobat: Overview of Print Productions Tools - Output Preview (
Acrobat: Preview color separations: disable preview of black ink ( (screenshot)
Acrobat: View color warnings: enable view of rich-black ( (screenshot)

Acrobat: Output Preview and Color Conversion (
Acrobat: Prepress-Perfect PDFs with Acrobat 8 Professional (

More guides

InDesign: Link Info - how to check effective resolution of images (adobephotoshopsecrets)
Photoshop: change the resolution - how to resample/upsample your low-resolution images (

Preflight profile (for Enfocus Pitstop Pro)