Memory leak issue in IOS when open large PDF file

[wasimbakali]

Bug Report or Feature Request (mark with an x)

- [ ] Regression (a behavior that used to work and stopped working in a new release)
- [x] Bug report -> please search issues before submitting
- [ ] Feature request
- [] Documentation issue or request

Hi There,

I am trying to open large PDF in my ionic 3 angular 5 project its working fine in browser but in IOS when i try to open large PDF (more than 100 MB) it gets open but after few seconds screen gets white and app gets refresh.

I found below log just before screen gets white.

[ProcessSuspension] 0x1c5c710c0 - ProcessAssertion() Unable to acquire assertion for process with PID 0

also i googled this error and found that this can be happen when app try to occupy much memory.

Is there any way to open large file without memory leak ?

Thanks in advance!

[VadimDez]

Fixed in 6.0.0 See https://github.com/VadimDez/ng2-pdf-viewer/blob/master/CHANGELOG.md#600

[gamalshaaban1986]

i am still having the same problem in IOS even after upgrading library, can any one help please

[VadimDez]

@gamalshaaban1986 Have you also done this? https://github.com/VadimDez/ng2-pdf-viewer/blob/master/CHANGELOG.md#breaking-change

[gamalshaaban1986]

yes , unfortunately the same problem, i think memory is not freed . the scenario i am facing is when trying to open files consequently, it works fine with the first one , then crashes on the next .is there any way to force freeing resources allocated in memory?

[VadimDez]

@gamalshaaban1986 before I'll dig into this problem you can try to hide and then show the component - this hack might help for now...

[gamalshaaban1986]

Actually i didn't get understand what do you mean,

my html for your reference

<pdf-viewer [src]="pdfSrc" style="display: block;" [zoom]="pdfZoom" [rotation]="rotation"
[original-size]="false" [show-all] ="false" [page]="page"
(after-load-complete)="afterLoadComplete($event)" >

[gamalshaaban1986]

did you mean adding *ngIf="isShown"?

[VadimDez]

Could you try the latest version 6.0.1? Also don't forget about breaking change. pdf-viewer container now should be scrollable for the best performance. https://github.com/VadimDez/ng2-pdf-viewer/blob/master/CHANGELOG.md#breaking-change

[gamalshaaban1986]

Thank VadimDez,
I had tried but for sorry the same memory leak exists

[htruong24]

I got the same issue, do we have any temporary solution?

[VadimDez]

@htruong24 You could try to do what it says here and make the pdf container scrollable, so that it doesn't render all the pages.

[seopei]

I have the same issue. I am using Ionic 5 and the latest version of ng2-pdf-viewer. I made the pdf container scrollable.

[gigallo]

Hi

We have the same problem using version 7.0.1 and viewing a file of less then 1MB.

Just one second before white page we can trace this log:

2022-02-09 02:24:42.894789-0800 App[1460:141238] [XPC] Handle connection with error: Connection interrupted 2022-02-09 02:24:42.927341-0800 App[1460:141238] [ServicesDaemonManager] interruptionHandler is called. -[FontServicesDaemonManager connection]_block_invoke 2022-02-09 02:24:43.192994-0800 App[1460:141087] [Process] 0x1075bc600 - [PID=1465] WebProcessProxy::didClose: (web process 0 crash) 2022-02-09 02:24:43.195157-0800 App[1460:141087] [Process] 0x1075bc600 - [PID=1465] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=4 2022-02-09 02:24:43.198158-0800 App[1460:141087] [ProcessSuspension] 0x1075d6760 - ProcessAssertion: Failed to acquire RBS Background assertion 'ConnectionTerminationWatchdog' for process because PID is invalid 2022-02-09 02:24:43.199106-0800 App[1460:141423] [ProcessSuspension] 0x1075d6760 - ProcessAssertion: Failed to acquire RBS assertion 'ConnectionTerminationWatchdog' for process with PID=0, error: (null) 2022-02-09 02:24:43.210215-0800 App[1460:141087] [Process] 0x101823c18 - [pageProxyID=5, webPageID=6, PID=1465] WebPageProxy::processDidTerminate: (pid 1465), reason 4 2022-02-09 02:24:43.334134-0800 App[1460:141423] [assertion] Error acquiring assertion: <Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}> 2022-02-09 02:24:43.334259-0800 App[1460:141423] [ProcessSuspension] 0x1075d67c0 - ProcessAssertion: Failed to acquire RBS assertion 'WebProcess Background Assertion' for process with PID=1465, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit} 2022-02-09 02:24:43.382068-0800 App[1460:141087] [Loading] 0x101823c18 - [pageProxyID=5, webPageID=6, PID=1465] WebPageProxy::dispatchProcessDidTerminate: reason=4 To Native Cordova -> Device getDeviceInfo Device599886057 ["options": []] To Native Cordova -> File requestAllPaths File599886058 ["options": []] To Native Cordova -> CordovaHttpPlugin setServerTrustMode CordovaHttpPlugin599886059 ["options": [pinned]]

Any help?

Thanks