How to check PDF merge order and catch missing pages
Separate file names from the real document order, then compare page counts and the points where one document ends and the next begins.
2026-10-11Read guide
These guides explain the steps and limits of the image and PDF tools. They were written with AI assistance based on the code and automated checks, and do not represent expert review or real user experience.
See supported toolsEntering PDF page ranges: order, duplicates and errors
Explains how input such as 1-3, 5 works, the difference between ZIP and a single PDF, and how reversed ranges, duplicates and printed page numbers are handled.
2026-10-11Read guide
Four things to check when a PDF is too large, and this tool’s limits
Before you try to meet an upload size limit, review the pages, the images, the conversion method and your originals, and understand how this differs from dedicated PDF compression.
2026-10-11Read guide
Image file size vs. pixel dimensions: compressing, resizing and choosing a format
Separates quality from resolution, and explains PNG transparency, how maximum dimensions are calculated and why compression sometimes does not shrink a file.
2026-10-11Read guide
PDF to JPG: checking resolution, page ranges and lost text
Explains the pixel math behind the 72, 144 and 216 dpi options, JPG and ZIP results, and the features lost when pages become images.
2026-10-11Read guide