CamScanner captures, the browser assembles: use both

Start from what you are holding

If the starting point is a stack of paper, say nine physiotherapy receipts you must submit by Friday, reach for a scanner first. The phone needs to see each page while the shutter is open, because edge detection and perspective correction only work on live camera data. Photograph all nine, let the app straighten and clean them, and only then think about the PDF.

If the starting point is a camera roll full of photos, say fourteen pictures of a whiteboard after a workshop, skip the scanner entirely. Open the image tool, drop the photos in, pick A4 or US Letter and a margin, and download one ordered PDF. Recapturing finished photos through a scanner app buys nothing. iPhone photos in HEIC format go through the HEIC route instead, which turns them into a PDF in the browser with no prior conversion.

CamScanner and PDFGym compared

The vendor's own site lists dedicated capture modes covering documents, forms, slides and whiteboards, plus background cleanup done automatically, flattened pages, retouch filters and text extraction across 41 languages. Checked September 2026. PDFGym does none of that, and CamScanner does none of this site's desk work, so read the table as a handoff, not a contest.

Where CamScanner wins

Everything that happens before the photo exists as a file. Finding the page in the viewfinder, correcting the angle, dropping the wooden table out of the background, evening out the light across a curled receipt: that cleanup chain is the product, and a browser tab that receives the finished JPEG can never replay it. The text extraction in 41 languages extends the same lead, since PDFGym reads no text from photos at all.

The cloud side is a genuine convenience for the right files. Syncing captures to a laptop, sharing a link instead of an attachment, printing from the phone: fair trades for lecture notes and receipts. For an identity document or a signed contract, pause and consider whether that copy needs to live on vendor storage, because sync means a server holds your pages by design.

Where PDFGym fits

Directly after the shutter closes. The image tool accepts JPG and PNG, detects the format from the file bytes, preserves decoded pixel dimensions and lays each photo on an A4 or US Letter page at the margin you pick, or matched to the image itself. Nothing is uploaded and no account is needed.

Then comes the size problem nobody warns about. A dozen full-resolution phone photos make a PDF far too large for most upload forms, so the compressor takes a target in kilobytes and works toward it through several methods, with scanned pages among its best cases. The phone scanning guide walks through the whole capture-to-file sequence.

Before you install anything

Check the scanner already on your phone. iPhones carry document capture in the Notes and Files apps, and Android phones carry it in the Drive app, all with automatic edge detection, free and with no extra account. For an occasional receipt or a single form, that built-in capture plus a browser tab covers the whole job.

CamScanner earns its install on volume and extras: batch capture sessions, retouch filters, text extraction and sync across devices. If none of those words matched your week, skip the app store. The scanner roundup compares the capture side properly.

How we checked

We reused the capture and language claims from CamScanner's own site, checked September 2026, and matched the PDFGym side against the image, HEIC and compressor tool pages in this repository. We installed nothing, created no accounts and ran no timed tests, so prices and plan details stay deliberately generic here.