Slow Version Of Everytime We Touch

[Hortense Malovich]

yourissue rings a bell as it was solved some time ago but seems to have come back again.

The issue is caused by the complex sketch that slow down the whole app.

Actually, this happens only when the extruded body touches the sketch. Must be a side effect of the automatic sketch modification feature when a body touches a sketch.

Bit late reply, but I experience the same. I would like to create a mesh that covers a half sphere.

Currently there is no method to fold a mesh around non flat surfaces. (@Istvan ).

So I do not see another method than breaking the mesh sketch up in small flat parts and extrude them right through the surface of the half sphere. This is very tedious work and leads to lots of sketches not touching the actual body.

As a consequence Shapr3d slows down leading to unworkable wait times with every little edit that follows.

Oh and by the way, I am also designing a lathe which needs to have an threaded axis. The thread itself has something like 450 revolutions around the surface of the axis. Any manipulation of this threaded axis leads to wait time of many, many minutes (maybe even more than10 minutes).

I removed the sketched pattern of the thread, but even then wait times are stil many minutes.

Also sometimes Shapr3D shuts down on this design (error report generated and sent).

For the last two years I have had consistent problems with Acrobat Pro DC being extremely slow/stuttery while scrolling, highlighting, commenting on a document. This happens no matter what the size of the PDF is from less than 1 MB to 10+ MB. It appears to be very poorly optimized compared to other professional software titles which all run smoothly on macOS: Word, Excel, Pages, Numbers, etc. I have tried deleting the prefernce files outlined in other topics, which did nothing to alleviate the issue at all.

My computer is a relatively powerful: 2016 15-inch MacBook Pro connected to an eGPU with Radeon RX 580 and an LG 4K monitor (more than enough power to edit PDFs). I am running the latest version of Adobe Acrobat Pro DC and macOS Mojave and have never seen these issues alleviated by two years of updates.

Given the cost of this software, I would really appreciate some help from Adobe's support team, as well as an indication that they are planning on doing something about what is clearly an egregious lack of concern over glaring optimization issues. Having spoken with other macOS users (I work in I.T.), this is not merely an individual user issue but a broader problem plaguing Adobe Acrobat in general.

Here's what finally worked for me: Switch to Read Mode (Ctrl-H). It scrolls the way you expect it to in this mode. But it gets better... hit Ctrl-H again to get back to the normal view, and like magic, scrolling is now fixed!!

[i]Accessibility[/i] was the problem -- in particular, it appears that Acrobat was rotating, deskewing, etc. as part of its insistence on "Inferring Reading Order" page-by-page.

The solution was:

* Edit > Preferences... > Reading

* Reading Order: "Use reading order in raw print stream".

* Page vs Document: "Only read the currently visible pages".

Check for any pending updates and try updating the application to the latest version 19.12.20040. Go to Help > Check for Updates. To know more about the latest version please use the link - -docs/acrobatetk/tools/ReleaseNotesDC/index.html

I do see a slight improvement using Single Page Continuous, however I don't see this as a solution as Enable Scrolling is more much intuitive when trying to read dense scholarly journals. For example, trying to scroll down to the end of a page without it jumping to the next page is near impossible with your interface. More importantly, paragraphs that are spliced by page breaks make it impossible to reference what was said a few sentence ago, if the paragraph is divided by said page break. In layman's terms, I cannot see the end of one page and beginning of the next in this mode, which makes the difficult subject matter of what I'm reading even more arduous.

Do you have a more practical solution? Maybe Adobe could address the core functionality of the Enable Scrolling feature so that it is viable? Perhaps an update that addresses the general performance of Acrobat, since almost every other PDF annotator on the market seems to run smoothly by comparison. Adobe Acrobat offers some core features that make switching to other software impractical, so it would be nice if that $15/month ($180 annually) actually went to optimizing such an expensive product.

Well, through my own research I've managed to surmise what the issue is with Adobe Acrobat Pro DC for macOS. In 2006, Adobe added 2D Graphics Acceleration for the Windows version of Acrobat, as outlined by this article. -reader-gets-gpu-acceleration/

As I stated before, using an annotated PDF in Adobe Acrobat Pro DC causes lag and delays sometimes in excess of 10 seconds, while the document catches up to the input from keyboard and mouse activity. This happens with scrolling, searching, and commenting/hightlighting documents on an almost constant basis. It happens at all document sizes from less than 1 MB all the way up 10 MB PDFs. While watching Activity Monitor in macOS, CPU History shows massive activity, while all of the GPUs in my machine (both internal and eGPU) remain idle.

I can then open that same document in competitive software like PDF Expert and experience perfectly smooth scrolling, commenting, and searching, interacting with the document with ease. While doing this, Activity Monitor confirms the programs utilization of both CPU and GPU functionality, confirming the complete lack of GPU ultilization in Adobe Acrobat.

This is wholely unacceptable for Adobe's flagship product, and I suspect Adobe knows full-well about this but don't want to devote the resources to modernizing Acrobat. They do so while continuing to charge $15 per month for the privledge of their software... far more than there competitors.

Thank you, but I always check for updates and can confirm I am again using the latest version again, 2019.021.20049. As well, this is by no means a new issue, but one that has persisted for the entire time I have used Acrobat for mac. It has become more noticeable as PDFs have become a large part of my workflow, where as before they were used only on occassion and mostly for reading purposes only.

In Preferences Select Page Display. Under the Rendering, check off the "Use Page Cache" I use a laptop so I have it set to Laptop/LCD screens in "Smooth text" This will stop the PDF from rendering continually when you move the mouse or when scrooling

I am (and seemingly tons of other people) are having this problem still. I seriously can't believe that this issue hasn't been addressed. Now I prefer to open all my PDFs in Mac's Preview! Thanks, Adobe for helping me want to use another product.

I think this may be resolved by modifying a registry or Plist (lockable preference) for the rendering speed during scrolling or zooming. See note taken from the Enterprise Toolkit Preferences Reference:

The other issue with non-lockable preferences is that, even if you manage to customize a deployment of Acrobat like this, it may be possible that with every future update this preference will revert to its Superfast Drawing default state, which is always enabled.

I am running a new 2021 Mac Pro (desktop) with ample power to do much more complex stuff than open a simple PDF, scroll, zoom, pan, and do basic work. But this Acrobat lag issue is so bad it it can't do the most basic jestures that it is seriously inhibiting productivity. The issue is consistent on my Macbook Pro laptop. A single page text-only PDF has both my Macs on their knees. Sometimes when scrolling the lag gets so bad that it goes into a perpetually indexing scroll which locks me out of any editing and I have to force quit the program. Ocassionally an error report is generated because it crashes.

It's clear there is a flaw with Acrobat on the Mac platform that needs Adobe support. Please let me know how to fix this as its almost unusable at this time. I love the Acrobat envrionment when it works, so I hope to resolve this soon.

I'm so glad I'm not the only one. I can't believe this issue is still not fixed!! I thought there was somethign wrong with my mouse... I have a Macbook pro 16" everything else works.. but when i try to scroll it just doesn't move .. it stutters and lags and doesn't stop where I was hoping it would stop. Then I have to lug back up. and then with the greatest difficulty stop in the place I want.. sadly the Read Mode hack doesn't work for me either. Nothing changes.

I'm wondering, when did this problem generally start for everyone? It's been ongoing for years for our team, but coincidentally it seemed to be around the time Mac was dropping support for 32-bit applications. We're upgraded to the latest software for our 64-bit operating systems since, but the problem still persists. Stramge.

For some reason anytime I open or save documents Nitro takes forever. It goes into, "not responding" for a 3-5 minutes but eventually it will open up the folder. Then once I select the file I want or type the name of the new file, it takes another few minutes once I click open/save.

We need a few more information from you so that we can help troubleshoot the problem. Some helpful information will be the exact version you are using, the file you were using, your exact step by step process, the support tools file, etc. I went ahead and opened a support ticket for you via

Hello I am having the same issue with Nitro 10 and Windows 10.. it takes between 1-2 minutes to double click a pdf and and open it. Once open everything slow and laggy.. no other application has this issue.. I have switch now to Adobe Reader which opens quickly (within 5secs)

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