PDFresh guide

How to Merge Scanned Documents into One PDF

Merge scanned documents locally in your browser after cleaning blank or sideways pages, arranging files in order, and checking the final packet.

By PDFresh. Published July 2, 2026. Updated July 20, 2026.

How to Merge Scanned Documents into One PDF
Self-made test illustration: review the source PDF, remove or rotate only the pages you intend to change, then check the exported copy.

Short answer

Clean each scanned document first, then merge the files in the exact order the final packet should read. Export a new combined PDF and check the page count before sending it.

When this helps

This workflow fits documents scanned in separate batches, such as a cover sheet, signed form, supporting ID, receipt set, and appendix that need to become one PDF.

File order vs page order

Merge PDF combines whole source files in the order shown on the page. If pages inside one source file are wrong, clean or extract that file first instead of hoping the merge step will fix it.

PDFresh workflow

Open X-Ray for files with blank backs or sideways pages. Export checked copies. Then open Merge PDF, add the reviewed files, move files up or down, remove accidental additions, and export the combined PDF.

Tested example

Three scanned PDFs were merged locally: a two-page cover, an eight-page signed form, and a four-page appendix. The export produced one 14-page file in the selected order.

Failure cases

Image-heavy scans can be large and may use significant browser memory. If merging fails, try cleaning or splitting the largest source first, then merge smaller files.

Limits

PDFresh does not compress large PDFs, repair damaged files, add bookmarks, add signatures, or check whether the merged packet is complete.

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