Acrobat Pro crashes when combining mixed‑dimension JPGs into a single PDF
In the latest version of Adobe Acrobat Pro, attempting to combine multiple JPG files of varying pixel dimensions and DPI into a single PDF causes the application to close abruptly without any error message. This occurs consistently when at least one image in the batch differs significantly in resolution or aspect ratio from the others.
Steps to Reproduce:
Open Acrobat Pro (latest build).
Go to File → Create → Combine Files into a Single PDF.
Add multiple JPG images with different dimensions/DPI (e.g., mix of 300 DPI A4‑sized scans and smaller 72 DPI images).
Click Combine.
Expected Result:Acrobat should successfully create a single PDF containing all images, scaling them as needed.
Actual Result:The application closes instantly without any error dialog or crash report prompt. The PDF is not created.
Additional Notes:
Issue does not occur when all images share the same dimensions/DPI.
The crash occurs regardless of whether images are added via drag‑and‑drop or the “Add Files” dialog.
Workarounds include pre‑normalizing images to the same size/DPI or converting them to PDFs in smaller batches before merging.
Bikas
shared this idea
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Sorry about the above post, it turned out to be wrongly determined, the real problem is that the file path contains over 150 characters in total, I checked that a file that contains exactly 151 or above characters are having this problem but not below it
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Clark Thomborson
commented
Hi, I too am unhappy with the behaviour of "combine files" in Acrobat when combining images.
On my particular installation of Acrobat Pro, combining two images of somewhat different size (498x312, 490x298) produces a 2-page document with images in highly-distorted aspect ratios. I imagine they're being distorted in this way to fit a default pagesize -- perhaps A4 on my installation.
Of course: your mileage may vary, as Acro Pro is in "Continuous Release". As such, it's pretty much guaranteed to behave differently a month from now. Or even a week from now. It'll change behaviour without notice, unless you untick a box indicating that you have opted-out of its recommendation to "automatically install updates".
For what it's worth, my installation is an "Acrobat Pro EDU", in "Continuous Release | Version 2025.001.20937 | 64-bit", running on a Win11 platform that's localised to NZ. Annoyingly, Acrobat's devs hadn't bothered to provide a cut-and-paste affordance for a plaintext rendition of the version number displayed in the Help / About Adobe Acrobat... affordance. Grumble.
And... I can't find any affordances in my installation of Acrobat Pro which would let me control the placement & scaling & aspect-ratio of the imagery. I'm guessing the only supported workflow for this use-case in Acro Pro is to scan all images into uncropped pages of a large-enough size to accommodate all images to be scanned, then crop the images individually (and rather clumsily) in the Edit affordances of Acro Pro. Well... creating a multipage PDF document from a collection of images is surely a clumsy collection of use-cases for the Acrobat product team to support... and fortunately I can easily work around using AcroPro for this task. I don't even have to use PDF! ;-)